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158420054 = 21312747977
BaseRepresentation
bin10010111000101…
…00110001010110
3102001002120110102
421130110301112
5311023420204
623415254102
73632356022
oct1134246126
9361076412
10158420054
1181473371
124507a332
1326a895a0
141707b382
15dd9441e
hex9714c56

158420054 has 16 divisors (see below), whose sum is σ = 257929728. Its totient is φ = 72539712.

The previous prime is 158420029. The next prime is 158420057. The reversal of 158420054 is 450024851.

It is a junction number, because it is equal to n+sod(n) for n = 158419999 and 158420026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158420057) by changing a digit.

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, 20687 + ... + 27290.

It is an arithmetic number, because the mean of its divisors is an integer number (16120608).

Almost surely, 2158420054 is an apocalyptic number.

158420054 is a deficient number, since it is larger than the sum of its proper divisors (99509674).

158420054 is a wasteful number, since it uses less digits than its factorization.

158420054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48119.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 158420054 is about 12586.5028502758. The cubic root of 158420054 is about 541.0906785362.

The spelling of 158420054 in words is "one hundred fifty-eight million, four hundred twenty thousand, fifty-four".

Divisors: 1 2 13 26 127 254 1651 3302 47977 95954 623701 1247402 6093079 12186158 79210027 158420054