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23519484340 = 22511106906747
BaseRepresentation
bin10101111001110111…
…101101100110110100
32020201010001121010121
4111321313231212310
5341131441444330
614445452101324
71461556214122
oct257167554664
966633047117
1023519484340
119a7a154770
124684764844
1322aa8a6a51
1411d18b6912
15929c2617a
hex579ded9b4

23519484340 has 24 divisors (see below), whose sum is σ = 53881000992. Its totient is φ = 8552539680.

The previous prime is 23519484299. The next prime is 23519484349. The reversal of 23519484340 is 4348491532.

It is a super-2 number, since 2×235194843402 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23519484349) 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, 53453154 + ... + 53453593.

It is an arithmetic number, because the mean of its divisors is an integer number (2245041708).

Almost surely, 223519484340 is an apocalyptic number.

23519484340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23519484340 is an abundant number, since it is smaller than the sum of its proper divisors (30361516652).

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

23519484340 is a wasteful number, since it uses less digits than its factorization.

23519484340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106906767 (or 106906765 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 23519484340 in words is "twenty-three billion, five hundred nineteen million, four hundred eighty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 106906747 213813494 427626988 534533735 1069067470 1175974217 2138134940 2351948434 4703896868 5879871085 11759742170 23519484340