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1157034641 = 7612819643
BaseRepresentation
bin100010011110110…
…1111001010010001
32222122011110010212
41010331233022101
54332200102031
6310451133505
740446426560
oct10475571221
92878143125
101157034641
11544130284
122835a4295
1315592cca9
14ad947bd7
156b8a012b
hex44f6f291

1157034641 has 16 divisors (see below), whose sum is σ = 1348925568. Its totient is φ = 971913600.

The previous prime is 1157034623. The next prime is 1157034647. The reversal of 1157034641 is 1464307511.

It is a de Polignac number, because none of the positive numbers 2k-1157034641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1157034598 and 1157034607.

It is not an unprimeable number, because it can be changed into a prime (1157034647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115166 + ... + 124808.

It is an arithmetic number, because the mean of its divisors is an integer number (84307848).

Almost surely, 21157034641 is an apocalyptic number.

It is an amenable number.

1157034641 is a deficient number, since it is larger than the sum of its proper divisors (191890927).

1157034641 is an equidigital number, since it uses as much as digits as its factorization.

1157034641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9992.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1157034641 is about 34015.2119058518. The cubic root of 1157034641 is about 1049.8214786442.

The spelling of 1157034641 in words is "one billion, one hundred fifty-seven million, thirty-four thousand, six hundred forty-one".

Divisors: 1 7 61 281 427 1967 9643 17141 67501 119987 588223 2709683 4117561 18967781 165290663 1157034641