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142166101 = 7211263759
BaseRepresentation
bin10000111100101…
…00100001010101
3100220111210020011
420132110201111
5242343303401
622035040221
73344251300
oct1036244125
9326453204
10142166101
1173281550
123b740071
13235b826c
1414c49b37
15c733451
hex8794855

142166101 has 12 divisors (see below), whose sum is σ = 180411840. Its totient is φ = 110778360.

The previous prime is 142166081. The next prime is 142166107. The reversal of 142166101 is 101661241.

It is not a de Polignac number, because 142166101 - 29 = 142165589 is a prime.

It is a super-2 number, since 2×1421661012 = 40422400547084402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142166107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131341 + ... + 132418.

It is an arithmetic number, because the mean of its divisors is an integer number (15034320).

Almost surely, 2142166101 is an apocalyptic number.

142166101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142166101 is a deficient number, since it is larger than the sum of its proper divisors (38245739).

142166101 is a wasteful number, since it uses less digits than its factorization.

142166101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263784 (or 263777 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 142166101 is about 11923.3426940603. The cubic root of 142166101 is about 521.9136846364.

The spelling of 142166101 in words is "one hundred forty-two million, one hundred sixty-six thousand, one hundred one".

Divisors: 1 7 11 49 77 539 263759 1846313 2901349 12924191 20309443 142166101