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389288763031 = 7133814156093
BaseRepresentation
bin1011010101000110110…
…10110001111010010111
31101012211012111011011111
411222203122301322113
522334230410404111
6454500425115451
740060636613620
oct5524332617227
91335735434144
10389288763031
111401073a3543
1263544028b87
132a92c4a8bbc
1414bad7bca47
15a1d6398a21
hex5aa36b1e97

389288763031 has 8 divisors (see below), whose sum is σ = 444934799264. Its totient is φ = 333651065760.

The previous prime is 389288763029. The next prime is 389288763041. The reversal of 389288763031 is 130367882983.

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

It is a cyclic number.

It is not a de Polignac number, because 389288763031 - 21 = 389288763029 is a prime.

It is a super-2 number, since 2×3892887630312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389288763001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1984380 + ... + 2171713.

It is an arithmetic number, because the mean of its divisors is an integer number (55616849908).

Almost surely, 2389288763031 is an apocalyptic number.

389288763031 is a deficient number, since it is larger than the sum of its proper divisors (55646036233).

389288763031 is a wasteful number, since it uses less digits than its factorization.

389288763031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169481.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 389288763031 in words is "three hundred eighty-nine billion, two hundred eighty-eight million, seven hundred sixty-three thousand, thirty-one".

Divisors: 1 7 13381 93667 4156093 29092651 55612680433 389288763031