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20031001302 = 23131991290491
BaseRepresentation
bin10010101001111100…
…001101001011010110
31220200222212022001010
4102221330031023112
5312010414020202
613111353513050
71306246462464
oct225174151326
956628768033
1020031001302
118549a83834
123a70412786
131b72c405c0
14d80475834
157c384176c
hex4a9f0d2d6

20031001302 has 32 divisors (see below), whose sum is σ = 43360531200. Its totient is φ = 6132408480.

The previous prime is 20031001273. The next prime is 20031001303. The reversal of 20031001302 is 20310013002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031001303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629724 + ... + 660767.

It is an arithmetic number, because the mean of its divisors is an integer number (1355016600).

Almost surely, 220031001302 is an apocalyptic number.

20031001302 is an abundant number, since it is smaller than the sum of its proper divisors (23329529898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20031001302 is a wasteful number, since it uses less digits than its factorization.

20031001302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290708.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20031001302 its reverse (20310013002), we get a palindrome (40341014304).

The spelling of 20031001302 in words is "twenty billion, thirty-one million, one thousand, three hundred two".

Divisors: 1 2 3 6 13 26 39 78 199 398 597 1194 2587 5174 7761 15522 1290491 2580982 3871473 7742946 16776383 33552766 50329149 100658298 256807709 513615418 770423127 1540846254 3338500217 6677000434 10015500651 20031001302