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1030304020431 = 37119027412193
BaseRepresentation
bin11101111111000101110…
…01111011011111001111
310122111101122210011111010
432333202321323133033
5113340030312123211
62105152022500303
7134302615450560
oct16774271733717
93574348704433
101030304020431
11367a49839a84
1214781a894693
137620763868a
1437c1cdd0167
151bc01de54a6
hexefe2e7b7cf

1030304020431 has 16 divisors (see below), whose sum is σ = 1570004077824. Its totient is φ = 588738779904.

The previous prime is 1030304020409. The next prime is 1030304020469. The reversal of 1030304020431 is 1340204030301.

It is not a de Polignac number, because 1030304020431 - 238 = 755426113487 is a prime.

It is a super-2 number, since 2×10303040204312 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1030304020398 and 1030304020407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030304020831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2293471 + ... + 2705663.

It is an arithmetic number, because the mean of its divisors is an integer number (98125254864).

Almost surely, 21030304020431 is an apocalyptic number.

1030304020431 is a deficient number, since it is larger than the sum of its proper divisors (539700057393).

1030304020431 is a wasteful number, since it uses less digits than its factorization.

1030304020431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531230.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1030304020431 its reverse (1340204030301), we get a palindrome (2370508050732).

The spelling of 1030304020431 in words is "one trillion, thirty billion, three hundred four million, twenty thousand, four hundred thirty-one".

Divisors: 1 3 7 21 119027 357081 412193 833189 1236579 2499567 2885351 8656053 49062096211 147186288633 343434673477 1030304020431