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21002332012 = 2223361736523
BaseRepresentation
bin10011100011110101…
…100010011101101100
32000012200121000021121
4103203311202131230
5321003044111022
613352012510324
71342312606444
oct234365423554
960180530247
1021002332012
1189a82a5992
1240a177b3a4
131c992503bc
14103347d124
1582dc5d2c7
hex4e3d6276c

21002332012 has 24 divisors (see below), whose sum is σ = 36972660816. Its totient is φ = 10438864128.

The previous prime is 21002331983. The next prime is 21002332031. The reversal of 21002332012 is 21023320012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556783 + ... + 593305.

It is an arithmetic number, because the mean of its divisors is an integer number (1540527534).

Almost surely, 221002332012 is an apocalyptic number.

It is an amenable number.

21002332012 is a deficient number, since it is larger than the sum of its proper divisors (15970328804).

21002332012 is a wasteful number, since it uses less digits than its factorization.

21002332012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37377 (or 37375 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21002332012 its reverse (21023320012), we get a palindrome (42025652024).

The spelling of 21002332012 in words is "twenty-one billion, two million, three hundred thirty-two thousand, twelve".

Divisors: 1 2 4 233 466 617 932 1234 2468 36523 73046 143761 146092 287522 575044 8509859 17019718 22534691 34039436 45069382 90138764 5250583003 10501166006 21002332012