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78465536701420 = 225111063335523547
BaseRepresentation
bin10001110101110100101110…
…011100010011001111101100
3101021211020021011102220220111
4101311310232130103033230
540241034404343421140
6434514323034425404
722345643101231531
oct2165645634231754
9337736234386814
1078465536701420
112300205796a510
128973191592264
1334a236478a35b
141553a76208d88
15911106bc67ea
hex475d2e7133ec

78465536701420 has 48 divisors (see below), whose sum is σ = 179926515756288. Its totient is φ = 28506080468160.

The previous prime is 78465536701411. The next prime is 78465536701441. The reversal of 78465536701420 is 2410763556487.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167527914 + ... + 167995633.

It is an arithmetic number, because the mean of its divisors is an integer number (3748469078256).

Almost surely, 278465536701420 is an apocalyptic number.

It is an amenable number.

78465536701420 is an abundant number, since it is smaller than the sum of its proper divisors (101460979054868).

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

78465536701420 is a wasteful number, since it uses less digits than its factorization.

78465536701420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335524630 (or 335524628 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 58.

The spelling of 78465536701420 in words is "seventy-eight trillion, four hundred sixty-five billion, five hundred thirty-six million, seven hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1063 2126 4252 5315 10630 11693 21260 23386 46772 58465 116930 233860 335523547 671047094 1342094188 1677617735 3355235470 3690759017 6710470940 7381518034 14763036068 18453795085 36907590170 73815180340 356661530461 713323060922 1426646121844 1783307652305 3566615304610 3923276835071 7133230609220 7846553670142 15693107340284 19616384175355 39232768350710 78465536701420