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3905432918437 = 434631249157057
BaseRepresentation
bin111000110101001101111…
…100010001100110100101
3111211100121100001012200211
4320311031330101212211
51002441311311342222
612150044153135421
7552105161036011
oct70651574214645
914740540035624
103905432918437
111276315082606
12530a956ba571
13224385a4363b
14d7049a73541
156b8c8bde277
hex38d4df119a5

3905432918437 has 16 divisors (see below), whose sum is σ = 4008120160000. Its totient is φ = 3803298250752.

The previous prime is 3905432918419. The next prime is 3905432918501. The reversal of 3905432918437 is 7348192345093.

It is a cyclic number.

It is not a de Polignac number, because 3905432918437 - 223 = 3905424529829 is a prime.

It is a super-2 number, since 2×39054329184372 (a number of 26 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 (3905432918417) 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, 24787813 + ... + 24944869.

It is an arithmetic number, because the mean of its divisors is an integer number (250507510000).

Almost surely, 23905432918437 is an apocalyptic number.

It is an amenable number.

3905432918437 is a deficient number, since it is larger than the sum of its proper divisors (102687241563).

3905432918437 is a wasteful number, since it uses less digits than its factorization.

3905432918437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158812.

The product of its (nonzero) digits is 19595520, while the sum is 58.

The spelling of 3905432918437 in words is "three trillion, nine hundred five billion, four hundred thirty-two million, nine hundred eighteen thousand, four hundred thirty-seven".

Divisors: 1 43 463 1249 19909 53707 157057 578287 6753451 24866341 72717391 196164193 3126847813 8435060299 90824021359 3905432918437