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23431302320442 = 2319205537739653
BaseRepresentation
bin1010101001111100001100…
…11100111001000100111010
310001222000021202010210021020
411110332012130321010322
511032344301343223232
6121500105223123310
74635566341352322
oct524760634710472
9101860252123236
1023431302320442
117514183341825
1227651878a3536
13100c740585273
145b011c6c8282
152a977e0e9e2c
hex154f8673913a

23431302320442 has 16 divisors (see below), whose sum is σ = 49329057516960. Its totient is φ = 7399358627472.

The previous prime is 23431302320399. The next prime is 23431302320443. The reversal of 23431302320442 is 24402320313432.

It is not an unprimeable number, because it can be changed into a prime (23431302320443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102768869713 + ... + 102768869940.

It is an arithmetic number, because the mean of its divisors is an integer number (3083066094810).

Almost surely, 223431302320442 is an apocalyptic number.

23431302320442 is an abundant number, since it is smaller than the sum of its proper divisors (25897755196518).

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

23431302320442 is a wasteful number, since it uses less digits than its factorization.

23431302320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205537739677.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 23431302320442 its reverse (24402320313432), we get a palindrome (47833622633874).

The spelling of 23431302320442 in words is "twenty-three trillion, four hundred thirty-one billion, three hundred two million, three hundred twenty thousand, four hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 205537739653 411075479306 616613218959 1233226437918 3905217053407 7810434106814 11715651160221 23431302320442