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780426714680 = 23522985199423
BaseRepresentation
bin10110101101101010000…
…11101001111000111000
32202121102021112211020022
423112311003221320320
5100241303214332210
61354304552550012
7110245462423154
oct13266503517070
92677367484208
10780426714680
11280a82597838
121073033b2308
1358794b07b42
1429ab69da064
1515479c65155
hexb5b50e9e38

780426714680 has 32 divisors (see below), whose sum is σ = 1763628076800. Its totient is φ = 310807491456.

The previous prime is 780426714673. The next prime is 780426714763. The reversal of 780426714680 is 86417624087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42590552 + ... + 42608871.

It is an arithmetic number, because the mean of its divisors is an integer number (55113377400).

Almost surely, 2780426714680 is an apocalyptic number.

It is an amenable number.

780426714680 is an abundant number, since it is smaller than the sum of its proper divisors (983201362120).

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

780426714680 is a wasteful number, since it uses less digits than its factorization.

780426714680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85199663 (or 85199659 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 780426714680 in words is "seven hundred eighty billion, four hundred twenty-six million, seven hundred fourteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 229 458 916 1145 1832 2290 4580 9160 85199423 170398846 340797692 425997115 681595384 851994230 1703988460 3407976920 19510667867 39021335734 78042671468 97553339335 156085342936 195106678670 390213357340 780426714680