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377928993 = 31335926993
BaseRepresentation
bin10110100001101…
…011110100100001
3222100010210010010
4112201223310201
51233222211433
6101300155133
712236225541
oct2641536441
9870123103
10377928993
11184370712
12a6698aa9
13603b4630
143829b321
15232a3e63
hex1686bd21

377928993 has 16 divisors (see below), whose sum is σ = 544199040. Its totient is φ = 231915264.

The previous prime is 377928931. The next prime is 377928997. The reversal of 377928993 is 399829773.

It is not a de Polignac number, because 377928993 - 220 = 376880417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (377928997) 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, 505 + ... + 27497.

It is an arithmetic number, because the mean of its divisors is an integer number (34012440).

Almost surely, 2377928993 is an apocalyptic number.

It is an amenable number.

377928993 is a deficient number, since it is larger than the sum of its proper divisors (166270047).

377928993 is a wasteful number, since it uses less digits than its factorization.

377928993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27368.

The product of its digits is 5143824, while the sum is 57.

The square root of 377928993 is about 19440.3959064624. The cubic root of 377928993 is about 722.9974020862.

The spelling of 377928993 in words is "three hundred seventy-seven million, nine hundred twenty-eight thousand, nine hundred ninety-three".

Divisors: 1 3 13 39 359 1077 4667 14001 26993 80979 350909 1052727 9690487 29071461 125976331 377928993