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163914680 = 23517241051
BaseRepresentation
bin10011100010100…
…10001110111000
3102102102201200002
421301102032320
5313430232210
624133132132
74030152236
oct1161221670
9372381602
10163914680
1184586586
1246a8a048
1327c61547
1417aab956
15e5cc4a5
hex9c523b8

163914680 has 32 divisors (see below), whose sum is σ = 390504240. Its totient is φ = 61708800.

The previous prime is 163914671. The next prime is 163914683. The reversal of 163914680 is 86419361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163914683) 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, 119846 + ... + 121205.

Almost surely, 2163914680 is an apocalyptic number.

163914680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163914680 is an abundant number, since it is smaller than the sum of its proper divisors (226589560).

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

163914680 is a wasteful number, since it uses less digits than its factorization.

163914680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241079 (or 241075 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 163914680 is about 12802.9168551545. The cubic root of 163914680 is about 547.2754289822.

The spelling of 163914680 in words is "one hundred sixty-three million, nine hundred fourteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 241051 482102 964204 1205255 1928408 2410510 4097867 4821020 8195734 9642040 16391468 20489335 32782936 40978670 81957340 163914680