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137202372 = 22325371909
BaseRepresentation
bin10000010110110…
…00101011000100
3100120011121021100
420023120223010
5240110433442
621340420100
73254125626
oct1013305304
9316147240
10137202372
11704a119a
1239b47630
132256ab48
1414316c16
15c0a284c
hex82d8ac4

137202372 has 36 divisors (see below), whose sum is σ = 353365740. Its totient is φ = 44870592.

The previous prime is 137202361. The next prime is 137202409. The reversal of 137202372 is 273202731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 87160896 + 50041476 = 9336^2 + 7074^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34047 + ... + 37862.

It is an arithmetic number, because the mean of its divisors is an integer number (9815715).

Almost surely, 2137202372 is an apocalyptic number.

137202372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137202372 is an abundant number, since it is smaller than the sum of its proper divisors (216163368).

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

137202372 is a wasteful number, since it uses less digits than its factorization.

137202372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71972 (or 71967 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 137202372 is about 11713.3416239773. The cubic root of 137202372 is about 515.7673820792.

The spelling of 137202372 in words is "one hundred thirty-seven million, two hundred two thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 53 106 159 212 318 477 636 954 1908 71909 143818 215727 287636 431454 647181 862908 1294362 2588724 3811177 7622354 11433531 15244708 22867062 34300593 45734124 68601186 137202372