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31404024023 = 312029499277
BaseRepresentation
bin11101001111110100…
…110110000011010111
310000001121012201020212
4131033310312003113
51003303412232043
622232105120035
72161135541231
oct351764660327
9100047181225
1031404024023
1112355831069
12610518901b
132c66222348
14173cac7251
15c3c016018
hex74fd360d7

31404024023 has 8 divisors (see below), whose sum is σ = 32433098880. Its totient is φ = 30375951840.

The previous prime is 31404024013. The next prime is 31404024077. The reversal of 31404024023 is 32042040413.

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 31404024023 - 228 = 31135588567 is a prime.

It is a super-2 number, since 2×314040240232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31404024023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404024013) 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, 186740 + ... + 312537.

It is an arithmetic number, because the mean of its divisors is an integer number (4054137360).

Almost surely, 231404024023 is an apocalyptic number.

31404024023 is a deficient number, since it is larger than the sum of its proper divisors (1029074857).

31404024023 is a wasteful number, since it uses less digits than its factorization.

31404024023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501337.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 31404024023 its reverse (32042040413), we get a palindrome (63446064436).

The spelling of 31404024023 in words is "thirty-one billion, four hundred four million, twenty-four thousand, twenty-three".

Divisors: 1 31 2029 62899 499277 15477587 1013033033 31404024023