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23531455030031 = 139723531861579
BaseRepresentation
bin1010101100110110110000…
…00001001010001100001111
310002022120210120010120200122
411112123120001022030033
511041014404441430111
6122014111243215155
74646043251344304
oct526333001121417
9102276716116618
1023531455030031
1175526a799a8a3
1227806788174bb
131019011901cc0
145b4cddb3b0ab
152ac19194bcdb
hex1566d804a30f

23531455030031 has 8 divisors (see below), whose sum is σ = 25341606630480. Its totient is φ = 21721309097472.

The previous prime is 23531455029977. The next prime is 23531455030033. The reversal of 23531455030031 is 13003055413532.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23531455030031 is a prime.

It is a super-2 number, since 2×235314550300312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23531455029973 and 23531455030000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23531455030033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11709800 + ... + 13571378.

It is an arithmetic number, because the mean of its divisors is an integer number (3167700828810).

Almost surely, 223531455030031 is an apocalyptic number.

23531455030031 is a deficient number, since it is larger than the sum of its proper divisors (1810151600449).

23531455030031 is a wasteful number, since it uses less digits than its factorization.

23531455030031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833945.

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 23531455030031 in words is "twenty-three trillion, five hundred thirty-one billion, four hundred fifty-five million, thirty thousand, thirty-one".

Divisors: 1 13 972353 1861579 12640589 24200527 1810111925387 23531455030031