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23003431100 = 22521319931313
BaseRepresentation
bin10101011011000111…
…001000000010111100
32012101011000101011122
4111123013020002330
5334102334243400
614322335210112
71443021636536
oct253307100274
965334011148
1023003431100
119834923291
12455b976938
1322279c0ac0
141183142856
158e978b685
hex55b1c80bc

23003431100 has 72 divisors (see below), whose sum is σ = 56586638640. Its totient is φ = 8046535680.

The previous prime is 23003431091. The next prime is 23003431109. The reversal of 23003431100 is 113430032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23003431091) and next prime (23003431109).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003431109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440957 + ... + 490356.

Almost surely, 223003431100 is an apocalyptic number.

23003431100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003431100 is an abundant number, since it is smaller than the sum of its proper divisors (33583207540).

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

23003431100 is a wasteful number, since it uses less digits than its factorization.

23003431100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931359 (or 931352 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23003431100 its reverse (113430032), we get a palindrome (23116861132).

The spelling of 23003431100 in words is "twenty-three billion, three million, four hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 13 19 20 25 26 38 50 52 65 76 95 100 130 190 247 260 325 380 475 494 650 950 988 1235 1300 1900 2470 4940 6175 12350 24700 931313 1862626 3725252 4656565 9313130 12107069 17694947 18626260 23282825 24214138 35389894 46565650 48428276 60535345 70779788 88474735 93131300 121070690 176949470 230034311 242141380 302676725 353898940 442373675 460068622 605353450 884747350 920137244 1150171555 1210706900 1769494700 2300343110 4600686220 5750857775 11501715550 23003431100