Search a number
-
+
157343380 = 22522813449
BaseRepresentation
bin10010110000011…
…01111010010100
3101222001212112121
421120031322110
5310234442010
623340225324
73620253025
oct1130157224
9358055477
10157343380
11808a8457
124483b244
13267a04bc
1416c7ac4c
15dc303da
hex960de94

157343380 has 24 divisors (see below), whose sum is σ = 330661800. Its totient is φ = 62891520.

The previous prime is 157343341. The next prime is 157343387. The reversal of 157343380 is 83343751.

It can be written as a sum of positive squares in 4 ways, for example, as 41616 + 157301764 = 204^2 + 12542^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157343387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43896 + ... + 47344.

It is an arithmetic number, because the mean of its divisors is an integer number (13777575).

Almost surely, 2157343380 is an apocalyptic number.

157343380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157343380 is an abundant number, since it is smaller than the sum of its proper divisors (173318420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157343380 is a wasteful number, since it uses less digits than its factorization.

157343380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5739 (or 5737 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 157343380 is about 12543.6589558231. The cubic root of 157343380 is about 539.8620818335.

The spelling of 157343380 in words is "one hundred fifty-seven million, three hundred forty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2281 3449 4562 6898 9124 11405 13796 17245 22810 34490 45620 68980 7867169 15734338 31468676 39335845 78671690 157343380