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3212081457 = 31382361063
BaseRepresentation
bin1011111101110100…
…0111100100110001
322021212002122101220
42333131013210301
523034243101312
61250422015253
7142412145654
oct27735074461
98255078356
103212081457
1113a9155382
12757877529
133c260b920
1422685189b
1513bed7c8c
hexbf747931

3212081457 has 8 divisors (see below), whose sum is σ = 4612219584. Its totient is φ = 1976665488.

The previous prime is 3212081443. The next prime is 3212081479. The reversal of 3212081457 is 7541802123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3212081457 - 228 = 2943646001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3212081057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41180493 + ... + 41180570.

It is an arithmetic number, because the mean of its divisors is an integer number (576527448).

Almost surely, 23212081457 is an apocalyptic number.

It is an amenable number.

3212081457 is a deficient number, since it is larger than the sum of its proper divisors (1400138127).

3212081457 is a wasteful number, since it uses less digits than its factorization.

3212081457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82361079.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 3212081457 is about 56675.2278954395. The cubic root of 3212081457 is about 1475.4647899597.

The spelling of 3212081457 in words is "three billion, two hundred twelve million, eighty-one thousand, four hundred fifty-seven".

Divisors: 1 3 13 39 82361063 247083189 1070693819 3212081457