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23312020040012 = 221131373731238383
BaseRepresentation
bin1010100110011110000001…
…01011000110100101001100
310001112121101202111002221002
411103033000223012211030
511023421004112240022
6121325221045555432
74624144405611644
oct523170053064514
9101477352432832
1023312020040012
117478632629a80
122746038415b78
131001410ca2742
145a844480d524
152a65ec167092
hex1533c0ac694c

23312020040012 has 96 divisors (see below), whose sum is σ = 47308567240704. Its totient is φ = 9950647046400.

The previous prime is 23312020039991. The next prime is 23312020040027. The reversal of 23312020040012 is 21004002021332.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18205373 + ... + 19443755.

It is an arithmetic number, because the mean of its divisors is an integer number (492797575424).

Almost surely, 223312020040012 is an apocalyptic number.

23312020040012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23312020040012 is an abundant number, since it is smaller than the sum of its proper divisors (23996547200692).

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

23312020040012 is a wasteful number, since it uses less digits than its factorization.

23312020040012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238839 (or 1238837 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23312020040012 its reverse (21004002021332), we get a palindrome (44316022061344).

The spelling of 23312020040012 in words is "twenty-three trillion, three hundred twelve billion, twenty million, forty thousand, twelve".

Divisors: 1 2 4 11 22 31 37 44 62 74 124 148 341 373 407 682 746 814 1147 1364 1492 1628 2294 4103 4588 8206 11563 12617 13801 16412 23126 25234 27602 46252 50468 55204 127193 151811 254386 303622 427831 508772 607244 855662 1238383 1711324 2476766 4706141 4953532 9412282 13622213 18824564 27244426 38389873 45820171 54488852 76779746 91640342 153559492 183280684 422288603 461916859 504021881 844577206 923833718 1008043762 1420425301 1689154412 1847667436 2016087524 2840850602 5081085449 5681701204 10162170898 14319422629 15624678311 17090923783 20324341796 28638845258 31249356622 34181847566 57277690516 62498713244 68363695132 157513648919 188000161613 315027297838 376000323226 529818637273 630054595676 752000646452 1059637274546 2119274549092 5828005010003 11656010020006 23312020040012