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342379540 = 22517118977
BaseRepresentation
bin10100011010000…
…100110000010100
3212212020200102201
4110122010300110
51200122121130
653550214244
711325115036
oct2432046024
9785220381
10342379540
1116629a8a8
12967b4384
1355c18759
1433685c56
15200d0bca
hex14684c14

342379540 has 12 divisors (see below), whose sum is σ = 718997076. Its totient is φ = 136951808.

The previous prime is 342379409. The next prime is 342379553. The reversal of 342379540 is 45973243.

It can be written as a sum of positive squares in 2 ways, for example, as 56972304 + 285407236 = 7548^2 + 16894^2 .

It is a super-2 number, since 2×3423795402 = 234447498821223200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 342379540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8559469 + ... + 8559508.

It is an arithmetic number, because the mean of its divisors is an integer number (59916423).

Almost surely, 2342379540 is an apocalyptic number.

It is an amenable number.

342379540 is an abundant number, since it is smaller than the sum of its proper divisors (376617536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

342379540 is a wasteful number, since it uses less digits than its factorization.

342379540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17118986 (or 17118984 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 342379540 is about 18503.5007498581. The cubic root of 342379540 is about 699.5776636071.

The spelling of 342379540 in words is "three hundred forty-two million, three hundred seventy-nine thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 17118977 34237954 68475908 85594885 171189770 342379540