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101231002 = 250615501
BaseRepresentation
bin1100000100010…
…10100110011010
321001111001211101
412002022212122
5201403343002
614013422014
72336310055
oct602124632
9231431741
10101231002
1152162394
1229a9a90a
1317c84c02
14d631a9c
158d49587
hex608a99a

101231002 has 4 divisors (see below), whose sum is σ = 151846506. Its totient is φ = 50615500.

The previous prime is 101230999. The next prime is 101231021. The reversal of 101231002 is 200132101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200132101 = 1315394777.

It can be written as a sum of positive squares in only one way, i.e., 82646281 + 18584721 = 9091^2 + 4311^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101231002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25307749 + ... + 25307752.

Almost surely, 2101231002 is an apocalyptic number.

101231002 is a deficient number, since it is larger than the sum of its proper divisors (50615504).

101231002 is an equidigital number, since it uses as much as digits as its factorization.

101231002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50615503.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 101231002 is about 10061.3618362526. The cubic root of 101231002 is about 466.0557228582.

Adding to 101231002 its reverse (200132101), we get a palindrome (301363103).

The spelling of 101231002 in words is "one hundred one million, two hundred thirty-one thousand, two".

Divisors: 1 2 50615501 101231002