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75368157 = 3171477807
BaseRepresentation
bin1000111111000…
…00011011011101
312020211002200020
410133200123131
5123243240112
611251222353
71603422144
oct437403335
9166732606
1075368157
11395a8237
12212a79b9
13127cb057
14a01c75b
15693b48c
hex47e06dd

75368157 has 8 divisors (see below), whose sum is σ = 106402176. Its totient is φ = 47289792.

The previous prime is 75368147. The next prime is 75368197. The reversal of 75368157 is 75186357.

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

It is not a de Polignac number, because 75368157 - 26 = 75368093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75368147) 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, 738853 + ... + 738954.

It is an arithmetic number, because the mean of its divisors is an integer number (13300272).

Almost surely, 275368157 is an apocalyptic number.

It is an amenable number.

75368157 is a deficient number, since it is larger than the sum of its proper divisors (31034019).

75368157 is a wasteful number, since it uses less digits than its factorization.

75368157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477827.

The product of its digits is 176400, while the sum is 42.

The square root of 75368157 is about 8681.4835713719. The cubic root of 75368157 is about 422.4052414033.

Adding to 75368157 its product of digits (176400), we get a palindrome (75544557).

The spelling of 75368157 in words is "seventy-five million, three hundred sixty-eight thousand, one hundred fifty-seven".

Divisors: 1 3 17 51 1477807 4433421 25122719 75368157