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137745454 = 2711894451
BaseRepresentation
bin10000011010111…
…01010000101110
3100121012012020111
420031131100232
5240230323304
621400210234
73261550150
oct1015352056
9317165214
10137745454
1170832220
123a16997a
13226cb0b2
1414418ad0
15c15d704
hex835d42e

137745454 has 16 divisors (see below), whose sum is σ = 257602176. Its totient is φ = 53667000.

The previous prime is 137745409. The next prime is 137745521. The reversal of 137745454 is 454547731.

It is a super-2 number, since 2×1377454542 = 37947620195332232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447072 + ... + 447379.

It is an arithmetic number, because the mean of its divisors is an integer number (16100136).

Almost surely, 2137745454 is an apocalyptic number.

137745454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

137745454 is a deficient number, since it is larger than the sum of its proper divisors (119856722).

137745454 is a wasteful number, since it uses less digits than its factorization.

137745454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894471.

The product of its digits is 235200, while the sum is 40.

The square root of 137745454 is about 11736.5009265965. The cubic root of 137745454 is about 516.4469991381.

The spelling of 137745454 in words is "one hundred thirty-seven million, seven hundred forty-five thousand, four hundred fifty-four".

Divisors: 1 2 7 11 14 22 77 154 894451 1788902 6261157 9838961 12522314 19677922 68872727 137745454