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23903208413 = 723971530589
BaseRepresentation
bin10110010000101111…
…100000001111011101
32021200212002210121022
4112100233200033131
5342423210132123
614551520413525
71504225630160
oct262057401735
967625083538
1023903208413
11a1568132a7
1247711772a5
13233c23a006
14122a841ad7
1594d7721c8
hex590be03dd

23903208413 has 16 divisors (see below), whose sum is σ = 28799581440. Its totient is φ = 19395611136.

The previous prime is 23903208389. The next prime is 23903208451. The reversal of 23903208413 is 31480230932.

It is a cyclic number.

It is not a de Polignac number, because 23903208413 - 26 = 23903208349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23903208463) 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, 749678 + ... + 780911.

It is an arithmetic number, because the mean of its divisors is an integer number (1799973840).

Almost surely, 223903208413 is an apocalyptic number.

23903208413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23903208413 is a deficient number, since it is larger than the sum of its proper divisors (4896373027).

23903208413 is a wasteful number, since it uses less digits than its factorization.

23903208413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530716.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 23903208413 in words is "twenty-three billion, nine hundred three million, two hundred eight thousand, four hundred thirteen".

Divisors: 1 7 23 97 161 679 2231 15617 1530589 10714123 35203547 148467133 246424829 1039269931 3414744059 23903208413