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34157007 = 324388261
BaseRepresentation
bin1000001001001…
…1000111001111
32101021100121100
42002103013033
532221011012
63220034143
7563221053
oct202230717
971240540
1034157007
111830a735
12b532953
1370cc161
144771c63
152eea8dc
hex20931cf

34157007 has 12 divisors (see below), whose sum is σ = 50485864. Its totient is φ = 22241520.

The previous prime is 34156987. The next prime is 34157021. The reversal of 34157007 is 70075143.

It is not a de Polignac number, because 34157007 - 27 = 34156879 is a prime.

It is a super-2 number, since 2×341570072 = 2333402254396098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34157107) 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, 43744 + ... + 44517.

Almost surely, 234157007 is an apocalyptic number.

34157007 is a deficient number, since it is larger than the sum of its proper divisors (16328857).

34157007 is a wasteful number, since it uses less digits than its factorization.

34157007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88310 (or 88307 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 34157007 is about 5844.3996269933. The cubic root of 34157007 is about 324.4590828614.

The spelling of 34157007 in words is "thirty-four million, one hundred fifty-seven thousand, seven".

Divisors: 1 3 9 43 129 387 88261 264783 794349 3795223 11385669 34157007