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387340051 = 7266111959
BaseRepresentation
bin10111000101100…
…101011100010011
3222222211220122211
4113011211130103
51243124340201
6102234012551
712412223200
oct2705453423
9888756584
10387340051
1118970934a
12a9877157
136232b0c7
143962aca7
1524012651
hex17165713

387340051 has 12 divisors (see below), whose sum is σ = 451298640. Its totient is φ = 331475760.

The previous prime is 387340043. The next prime is 387340067. The reversal of 387340051 is 150043783.

It is not a de Polignac number, because 387340051 - 23 = 387340043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387339995 and 387340022.

It is not an unprimeable number, because it can be changed into a prime (387340091) 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, 26410 + ... + 38368.

It is an arithmetic number, because the mean of its divisors is an integer number (37608220).

Almost surely, 2387340051 is an apocalyptic number.

387340051 is a deficient number, since it is larger than the sum of its proper divisors (63958589).

387340051 is a wasteful number, since it uses less digits than its factorization.

387340051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12634 (or 12627 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 387340051 is about 19680.9565570376. The cubic root of 387340051 is about 728.9495437451.

The spelling of 387340051 in words is "three hundred eighty-seven million, three hundred forty thousand, fifty-one".

Divisors: 1 7 49 661 4627 11959 32389 83713 585991 7904899 55334293 387340051