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106078987 = 7101150041
BaseRepresentation
bin1100101001010…
…10001100001011
321101121101000101
412110222030023
5204124011422
614305350231
72425441120
oct624521413
9241541011
10106078987
1154973793
122b638377
1318c91741
1410134747
1594a5c27
hex652a30b

106078987 has 8 divisors (see below), whose sum is σ = 122434272. Its totient is φ = 90024000.

The previous prime is 106078969. The next prime is 106079003. The reversal of 106078987 is 789870601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106078987 - 215 = 106046219 is a prime.

It is a super-2 number, since 2×1060789872 = 22505502965892338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106078927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74314 + ... + 75727.

It is an arithmetic number, because the mean of its divisors is an integer number (15304284).

Almost surely, 2106078987 is an apocalyptic number.

106078987 is a deficient number, since it is larger than the sum of its proper divisors (16355285).

106078987 is a wasteful number, since it uses less digits than its factorization.

106078987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150149.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 106078987 is about 10299.4653744745. The cubic root of 106078987 is about 473.3798720469.

The spelling of 106078987 in words is "one hundred six million, seventy-eight thousand, nine hundred eighty-seven".

Divisors: 1 7 101 707 150041 1050287 15154141 106078987