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755464640623 = 72111401604157
BaseRepresentation
bin10101111111001010011…
…00111001100001101111
32200012222122000002000221
422333211030321201233
544334142421444443
61335020005032211
7105403055331100
oct12774514714157
92605878002027
10755464640623
11271433105070
121024b76b5667
13563173c0114
14287c96c63a7
15149b8584eed
hexafe533986f

755464640623 has 12 divisors (see below), whose sum is σ = 958697244072. Its totient is φ = 588673745520.

The previous prime is 755464640611. The next prime is 755464640669. The reversal of 755464640623 is 326046464557.

It is not a de Polignac number, because 755464640623 - 25 = 755464640591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755464640683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700801540 + ... + 700802617.

It is an arithmetic number, because the mean of its divisors is an integer number (79891437006).

Almost surely, 2755464640623 is an apocalyptic number.

755464640623 is a deficient number, since it is larger than the sum of its proper divisors (203232603449).

755464640623 is a wasteful number, since it uses less digits than its factorization.

755464640623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401604182 (or 1401604175 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 52.

The spelling of 755464640623 in words is "seven hundred fifty-five billion, four hundred sixty-four million, six hundred forty thousand, six hundred twenty-three".

Divisors: 1 7 11 49 77 539 1401604157 9811229099 15417645727 68678603693 107923520089 755464640623