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20311404132001 = 173893071435677
BaseRepresentation
bin1001001111001000111100…
…00001110011011010100001
32122220202021200021110112011
410213210132001303122201
510130240223424211001
6111110532533232521
74164310346331433
oct447443601633241
978822250243464
1020311404132001
11652102212a514
1223405a0192741
13b44484997238
14503111bcc653
1525352d811d51
hex12791e0736a1

20311404132001 has 8 divisors (see below), whose sum is σ = 21561478459560. Its totient is φ = 19067472676608.

The previous prime is 20311404131989. The next prime is 20311404132023. The reversal of 20311404132001 is 10023140411302.

It can be written as a sum of positive squares in 4 ways, for example, as 4399674051600 + 15911730080401 = 2097540^2 + 3988951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20311404132001 - 29 = 20311404131489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20311404132601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535711226 + ... + 1535724451.

It is an arithmetic number, because the mean of its divisors is an integer number (2695184807445).

Almost surely, 220311404132001 is an apocalyptic number.

It is an amenable number.

20311404132001 is a deficient number, since it is larger than the sum of its proper divisors (1250074327559).

20311404132001 is a wasteful number, since it uses less digits than its factorization.

20311404132001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071436083.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20311404132001 its reverse (10023140411302), we get a palindrome (30334544543303).

The spelling of 20311404132001 in words is "twenty trillion, three hundred eleven billion, four hundred four million, one hundred thirty-two thousand, one".

Divisors: 1 17 389 6613 3071435677 52214406509 1194788478353 20311404132001