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78780575130213 = 31137471372794799
BaseRepresentation
bin10001111010011010001000…
…001100100010001001100101
3101022221100102201211021201210
4101322122020030202021211
540311220104213131323
6435315144021342033
722410465043546005
oct2172321014421145
9338840381737653
1078780575130213
1123113721945960
128a04253267919
1334c5c9009b628
1415650006d6005
159193e473b293
hex47a688322265

78780575130213 has 32 divisors (see below), whose sum is σ = 120190930329600. Its totient is φ = 45466963709760.

The previous prime is 78780575130193. The next prime is 78780575130221. The reversal of 78780575130213 is 31203157508787.

It is not a de Polignac number, because 78780575130213 - 25 = 78780575130181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78780575140213) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 686340013 + ... + 686454786.

It is an arithmetic number, because the mean of its divisors is an integer number (3755966572800).

Almost surely, 278780575130213 is an apocalyptic number.

It is an amenable number.

78780575130213 is a deficient number, since it is larger than the sum of its proper divisors (41410355199387).

78780575130213 is a wasteful number, since it uses less digits than its factorization.

78780575130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372794897.

The product of its (nonzero) digits is 9878400, while the sum is 57.

The spelling of 78780575130213 in words is "seventy-eight trillion, seven hundred eighty billion, five hundred seventy-five million, one hundred thirty thousand, two hundred thirteen".

Divisors: 1 3 11 33 37 47 111 141 407 517 1221 1551 1739 5217 19129 57387 1372794799 4118384397 15100742789 45302228367 50793407563 64521355553 152380222689 193564066659 558727483193 709734911083 1676182449579 2129204733249 2387290155461 7161870466383 26260191710071 78780575130213