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137023478 = 2193605881
BaseRepresentation
bin10000010101011…
…00111111110110
3100112211111212122
420022230333312
5240034222403
621332515542
73252452234
oct1012547766
9315744778
10137023478
1170389849
1239a7bbb2
13225075a7
14142ab954
15c069838
hex82acff6

137023478 has 8 divisors (see below), whose sum is σ = 216352920. Its totient is φ = 64905840.

The previous prime is 137023433. The next prime is 137023483. The reversal of 137023478 is 874320731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 1802903 + ... + 1802978.

It is an arithmetic number, because the mean of its divisors is an integer number (27044115).

Almost surely, 2137023478 is an apocalyptic number.

137023478 is a deficient number, since it is larger than the sum of its proper divisors (79329442).

137023478 is a wasteful number, since it uses less digits than its factorization.

137023478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605902.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 137023478 is about 11705.7027982091. The cubic root of 137023478 is about 515.5431201138.

The spelling of 137023478 in words is "one hundred thirty-seven million, twenty-three thousand, four hundred seventy-eight".

Divisors: 1 2 19 38 3605881 7211762 68511739 137023478