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538720670936 = 2379620011981
BaseRepresentation
bin1111101011011100100…
…00010001010011011000
31220111112100222121012002
413311232100101103120
532311244442432221
61051252421340132
753631000101660
oct7655620212330
91814470877162
10538720670936
11198519857698
12884a8567648
133ba55151c96
141c1079311a0
15e03015e80b
hex7d6e4114d8

538720670936 has 16 divisors (see below), whose sum is σ = 1154401437840. Its totient is φ = 230880287520.

The previous prime is 538720670869. The next prime is 538720670959. The reversal of 538720670936 is 639076027835.

It is a happy number.

It is a super-2 number, since 2×5387206709362 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 9620011981 = 538720670936 / (5 + 3 + 8 + 7 + 2 + 0 + 6 + 7 + 0 + 9 + 3 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4810005935 + ... + 4810006046.

It is an arithmetic number, because the mean of its divisors is an integer number (72150089865).

Almost surely, 2538720670936 is an apocalyptic number.

538720670936 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

538720670936 is an abundant number, since it is smaller than the sum of its proper divisors (615680766904).

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

538720670936 is a wasteful number, since it uses less digits than its factorization.

538720670936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9620011994 (or 9620011990 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 538720670936 in words is "five hundred thirty-eight billion, seven hundred twenty million, six hundred seventy thousand, nine hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 56 9620011981 19240023962 38480047924 67340083867 76960095848 134680167734 269360335468 538720670936