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135804894 = 23198211451
BaseRepresentation
bin10000001100000…
…11011111011110
3100110112121021220
420012003133132
5234231224034
621250434210
73236215431
oct1006033736
9313477256
10135804894
116a727255
1239592966
132219ba34
1414071818
15bdc8749
hex81837de

135804894 has 32 divisors (see below), whose sum is σ = 286450560. Its totient is φ = 42804000.

The previous prime is 135804887. The next prime is 135804923. The reversal of 135804894 is 498408531.

135804894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92869 + ... + 94319.

It is an arithmetic number, because the mean of its divisors is an integer number (8951580).

Almost surely, 2135804894 is an apocalyptic number.

135804894 is an abundant number, since it is smaller than the sum of its proper divisors (150645666).

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

135804894 is a wasteful number, since it uses less digits than its factorization.

135804894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 135804894 is about 11653.5356866489. The cubic root of 135804894 is about 514.0102825642.

The spelling of 135804894 in words is "one hundred thirty-five million, eight hundred four thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 19 38 57 114 821 1451 1642 2463 2902 4353 4926 8706 15599 27569 31198 46797 55138 82707 93594 165414 1191271 2382542 3573813 7147626 22634149 45268298 67902447 135804894