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157345773 = 3134034507
BaseRepresentation
bin10010110000011…
…10011111101101
3101222001222211020
421120032133231
5310240031043
623340244353
73620263014
oct1130163755
9358058736
10157345773
11808aa232
12448406b9
13267a1610
1416c7ba7b
15dc30e83
hex960e7ed

157345773 has 8 divisors (see below), whose sum is σ = 225932448. Its totient is φ = 96828144.

The previous prime is 157345763. The next prime is 157345781. The reversal of 157345773 is 377543751.

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

It is not a de Polignac number, because 157345773 - 212 = 157341677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157345703) 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, 2017215 + ... + 2017292.

It is an arithmetic number, because the mean of its divisors is an integer number (28241556).

Almost surely, 2157345773 is an apocalyptic number.

157345773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

157345773 is a deficient number, since it is larger than the sum of its proper divisors (68586675).

157345773 is a wasteful number, since it uses less digits than its factorization.

157345773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034523.

The product of its digits is 308700, while the sum is 42.

The square root of 157345773 is about 12543.7543423012. The cubic root of 157345773 is about 539.8648186998.

The spelling of 157345773 in words is "one hundred fifty-seven million, three hundred forty-five thousand, seven hundred seventy-three".

Divisors: 1 3 13 39 4034507 12103521 52448591 157345773