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85106426 = 242553213
BaseRepresentation
bin1010001001010…
…01111011111010
312221010212001212
411010221323322
5133241401201
612240043122
72052251456
oct504517372
9187125055
1085106426
1144049799
12246034a2
131482a742
14b435666
157711abb
hex5129efa

85106426 has 4 divisors (see below), whose sum is σ = 127659642. Its totient is φ = 42553212.

The previous prime is 85106363. The next prime is 85106429. The reversal of 85106426 is 62460158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62460158 = 231230079.

It can be written as a sum of positive squares in only one way, i.e., 81884401 + 3222025 = 9049^2 + 1795^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85106392 and 85106401.

It is not an unprimeable number, because it can be changed into a prime (85106429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21276605 + ... + 21276608.

Almost surely, 285106426 is an apocalyptic number.

85106426 is a deficient number, since it is larger than the sum of its proper divisors (42553216).

85106426 is a wasteful number, since it uses less digits than its factorization.

85106426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42553215.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 85106426 is about 9225.3144119862. The cubic root of 85106426 is about 439.8663953859.

The spelling of 85106426 in words is "eighty-five million, one hundred six thousand, four hundred twenty-six".

Divisors: 1 2 42553213 85106426