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120398343 = 31329106453
BaseRepresentation
bin1110010110100…
…10001000000111
322101112212110220
413023102020013
5221310221333
615540315423
72661240402
oct713221007
9271485426
10120398343
1161a6406a
12343a2b73
131bc36330
1411dc0d39
15a8838b3
hex72d2207

120398343 has 16 divisors (see below), whose sum is σ = 178842720. Its totient is φ = 71535744.

The previous prime is 120398309. The next prime is 120398347. The reversal of 120398343 is 343893021.

It is a happy number.

It is not a de Polignac number, because 120398343 - 217 = 120267271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120398347) 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, 52096 + ... + 54357.

It is an arithmetic number, because the mean of its divisors is an integer number (11177670).

Almost surely, 2120398343 is an apocalyptic number.

120398343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120398343 is a deficient number, since it is larger than the sum of its proper divisors (58444377).

120398343 is a wasteful number, since it uses less digits than its factorization.

120398343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106498.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 120398343 is about 10972.6178735979. The cubic root of 120398343 is about 493.7875889131.

The spelling of 120398343 in words is "one hundred twenty million, three hundred ninety-eight thousand, three hundred forty-three".

Divisors: 1 3 13 29 39 87 377 1131 106453 319359 1383889 3087137 4151667 9261411 40132781 120398343