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100385660 = 2256078269
BaseRepresentation
bin1011111101111…
…00001101111100
320222220010020102
411332330031330
5201144320120
613543340232
72326156364
oct576741574
9228803212
10100385660
1151735261
1229751678
1317a4a1cb
14d4919a4
158c2dd75
hex5fbc37c

100385660 has 24 divisors (see below), whose sum is σ = 211182720. Its totient is φ = 40083264.

The previous prime is 100385653. The next prime is 100385707. The reversal of 100385660 is 66583001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8006 + ... + 16274.

It is an arithmetic number, because the mean of its divisors is an integer number (8799280).

Almost surely, 2100385660 is an apocalyptic number.

100385660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100385660 is an abundant number, since it is smaller than the sum of its proper divisors (110797060).

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

100385660 is a wasteful number, since it uses less digits than its factorization.

100385660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8885 (or 8883 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 100385660 is about 10019.2644440598. The cubic root of 100385660 is about 464.7548096500.

The spelling of 100385660 in words is "one hundred million, three hundred eighty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 607 1214 2428 3035 6070 8269 12140 16538 33076 41345 82690 165380 5019283 10038566 20077132 25096415 50192830 100385660