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1457055688 = 231143385057
BaseRepresentation
bin101011011011000…
…1110011111001000
310202112201002122111
41112312032133020
510441001240223
6400325432104
751051524524
oct12666163710
93675632574
101457055688
11688519560
12347b6b634
131a2b3753a
14db724d84
1587db530d
hex56d8e7c8

1457055688 has 32 divisors (see below), whose sum is σ = 3049659360. Its totient is φ = 646894080.

The previous prime is 1457055673. The next prime is 1457055689. The reversal of 1457055688 is 8865507541.

It is a super-2 number, since 2×14570556882 = 4246022555866306688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1457055689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188745 + ... + 196312.

It is an arithmetic number, because the mean of its divisors is an integer number (95301855).

Almost surely, 21457055688 is an apocalyptic number.

It is an amenable number.

1457055688 is an abundant number, since it is smaller than the sum of its proper divisors (1592603672).

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

1457055688 is a wasteful number, since it uses less digits than its factorization.

1457055688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385117 (or 385113 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 49.

The square root of 1457055688 is about 38171.3988216308. The cubic root of 1457055688 is about 1133.6840857452.

The spelling of 1457055688 in words is "one billion, four hundred fifty-seven million, fifty-five thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 11 22 43 44 86 88 172 344 473 946 1892 3784 385057 770114 1540228 3080456 4235627 8471254 16557451 16942508 33114902 33885016 66229804 132459608 182131961 364263922 728527844 1457055688