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107121031 = 1937152377
BaseRepresentation
bin1100110001010…
…00100110000111
321110120022102121
412120220212013
5204410333111
614343550411
72440341133
oct630504607
9243508377
10107121031
1155515686
122ba5b407
1319267b34
14103263c3
15960e871
hex6628987

107121031 has 8 divisors (see below), whose sum is σ = 115807280. Its totient is φ = 98739648.

The previous prime is 107121019. The next prime is 107121059. The reversal of 107121031 is 130121701.

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 107121031 - 213 = 107112839 is a prime.

It is a super-2 number, since 2×1071210312 = 22949830565005922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 107120996 and 107121014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107121011) 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, 75486 + ... + 76891.

It is an arithmetic number, because the mean of its divisors is an integer number (14475910).

Almost surely, 2107121031 is an apocalyptic number.

107121031 is a deficient number, since it is larger than the sum of its proper divisors (8686249).

107121031 is a wasteful number, since it uses less digits than its factorization.

107121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152433.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 107121031 is about 10349.9290335731. The cubic root of 107121031 is about 474.9248723287.

Adding to 107121031 its reverse (130121701), we get a palindrome (237242732).

The spelling of 107121031 in words is "one hundred seven million, one hundred twenty-one thousand, thirty-one".

Divisors: 1 19 37 703 152377 2895163 5637949 107121031