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157850145 = 32510732783
BaseRepresentation
bin10010110100010…
…01101000100001
3102000000121200200
421122021220201
5310402201040
623355135413
73624463335
oct1132115041
9360017620
10157850145
1181114172
1244a44569
132691a06b
1416d6d7c5
15dcd0630
hex9689a21

157850145 has 24 divisors (see below), whose sum is σ = 276172416. Its totient is φ = 83397408.

The previous prime is 157850129. The next prime is 157850149. The reversal of 157850145 is 541058751.

It is not a de Polignac number, because 157850145 - 24 = 157850129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157850149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11577 + ... + 21206.

It is an arithmetic number, because the mean of its divisors is an integer number (11507184).

Almost surely, 2157850145 is an apocalyptic number.

157850145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157850145 is a deficient number, since it is larger than the sum of its proper divisors (118322271).

157850145 is a wasteful number, since it uses less digits than its factorization.

157850145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32901 (or 32898 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

The square root of 157850145 is about 12563.8427640591. The cubic root of 157850145 is about 540.4410491367.

The spelling of 157850145 in words is "one hundred fifty-seven million, eight hundred fifty thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 107 321 535 963 1605 4815 32783 98349 163915 295047 491745 1475235 3507781 10523343 17538905 31570029 52616715 157850145