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23015888078743 = 724211115705467
BaseRepresentation
bin1010011101110110011011…
…10101010100011110010111
310000111022000210221210210201
411032323031311110132113
511004043014322004433
6120541204130201331
74563562106513200
oct516731565243627
9100438023853721
1023015888078743
117373a8a8854aa
1226b8772423247
13cac509641161
14597d912b05a7
1529da69363a7d
hex14eecdd54797

23015888078743 has 12 divisors (see below), whose sum is σ = 26837179327272. Its totient is φ = 19681044420240.

The previous prime is 23015888078741. The next prime is 23015888078791. The reversal of 23015888078743 is 34787088851032.

It is not a de Polignac number, because 23015888078743 - 21 = 23015888078741 is a prime.

It is a super-2 number, since 2×230158880787432 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015888078741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 557832105 + ... + 557873362.

It is an arithmetic number, because the mean of its divisors is an integer number (2236431610606).

Almost surely, 223015888078743 is an apocalyptic number.

23015888078743 is a deficient number, since it is larger than the sum of its proper divisors (3821291248529).

23015888078743 is a wasteful number, since it uses less digits than its factorization.

23015888078743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115705902 (or 1115705895 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 64.

The spelling of 23015888078743 in words is "twenty-three trillion, fifteen billion, eight hundred eighty-eight million, seventy-eight thousand, seven hundred forty-three".

Divisors: 1 7 49 421 2947 20629 1115705467 7809938269 54669567883 469712001607 3287984011249 23015888078743