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207000157 = 731323571
BaseRepresentation
bin11000101011010…
…01001001011101
3112102111200211111
430111221021131
5410443001112
632312422021
75062321000
oct1425511135
9472450744
10207000157
11a6934311
12593a7911
1333b68600
141d6c5537
151328d5a7
hexc56925d

207000157 has 24 divisors (see below), whose sum is σ = 261470400. Its totient is φ = 163734480.

The previous prime is 207000149. The next prime is 207000169. The reversal of 207000157 is 751000702.

207000157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 207000157 - 23 = 207000149 is a prime.

It is the 14388-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207000557) by changing a digit.

It is a nontrivial repunit in base 14387.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56182 + ... + 59752.

It is an arithmetic number, because the mean of its divisors is an integer number (10894600).

Almost surely, 2207000157 is an apocalyptic number.

It is an amenable number.

207000157 is a deficient number, since it is larger than the sum of its proper divisors (54470243).

207000157 is an equidigital number, since it uses as much as digits as its factorization.

207000157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618 (or 3591 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 207000157 is about 14387.5000260643. The cubic root of 207000157 is about 591.5483195241.

Adding to 207000157 its reverse (751000702), we get a palindrome (958000859).

The spelling of 207000157 in words is "two hundred seven million, one hundred fifty-seven", and thus it is an aban number.

Divisors: 1 7 13 49 91 169 343 637 1183 3571 4459 8281 24997 46423 57967 174979 324961 603499 1224853 2274727 4224493 15923089 29571451 207000157