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83030157 = 337297647
BaseRepresentation
bin1001111001011…
…11000010001101
312210020100222000
410330233002031
5132223431112
612123342513
72025513300
oct474570215
9183210860
1083030157
1142960871
1223981a39
1314281692
14b054b37
1574517dc
hex4f2f08d

83030157 has 48 divisors (see below), whose sum is σ = 144789120. Its totient is φ = 46884096.

The previous prime is 83030149. The next prime is 83030177. The reversal of 83030157 is 75103038.

It is not a de Polignac number, because 83030157 - 23 = 83030149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 83030157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83030117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128008 + ... + 128654.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440).

Almost surely, 283030157 is an apocalyptic number.

It is an amenable number.

83030157 is a deficient number, since it is larger than the sum of its proper divisors (61758963).

83030157 is a wasteful number, since it uses less digits than its factorization.

83030157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 83030157 is about 9112.0885092277. The cubic root of 83030157 is about 436.2598908549.

The spelling of 83030157 in words is "eighty-three million, thirty thousand, one hundred fifty-seven".

Divisors: 1 3 7 9 21 27 49 63 97 147 189 291 441 647 679 873 1323 1941 2037 2619 4529 4753 5823 6111 13587 14259 17469 18333 31703 40761 42777 62759 95109 122283 128331 188277 285327 439313 564831 855981 1317939 1694493 3075191 3953817 9225573 11861451 27676719 83030157