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157361380 = 225114211699
BaseRepresentation
bin10010110000100…
…10010011100100
3101222002210020021
421120102103210
5310241031010
623340444524
73620356351
oct1130222344
9358083207
10157361380
118090aa30
1244849744
13267a8757
1416c83628
15dc358da
hex96124e4

157361380 has 48 divisors (see below), whose sum is σ = 361569600. Its totient is φ = 57052800.

The previous prime is 157361371. The next prime is 157361383. The reversal of 157361380 is 83163751.

It is not an unprimeable number, because it can be changed into a prime (157361383) 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 15 ways as a sum of consecutive naturals, for example, 91771 + ... + 93469.

It is an arithmetic number, because the mean of its divisors is an integer number (7532700).

Almost surely, 2157361380 is an apocalyptic number.

157361380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157361380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180784800).

157361380 is an abundant number, since it is smaller than the sum of its proper divisors (204208220).

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

157361380 is a wasteful number, since it uses less digits than its factorization.

157361380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 157361380 is about 12544.3764293009. The cubic root of 157361380 is about 539.8826676947.

The spelling of 157361380 in words is "one hundred fifty-seven million, three hundred sixty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 421 842 1684 1699 2105 3398 4210 4631 6796 8420 8495 9262 16990 18524 18689 23155 33980 37378 46310 74756 92620 93445 186890 373780 715279 1430558 2861116 3576395 7152790 7868069 14305580 15736138 31472276 39340345 78680690 157361380