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149906680 = 235721117409
BaseRepresentation
bin10001110111101…
…10010011111000
3101110002001022021
420323312103320
5301334003210
622513004224
73500120500
oct1073662370
9343061267
10149906680
1177689120
1242253674
13250985a1
1415ca2a00
15d261bda
hex8ef64f8

149906680 has 192 divisors, whose sum is σ = 454312800. Its totient is φ = 43868160.

The previous prime is 149906677. The next prime is 149906681. The reversal of 149906680 is 86609941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149906681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 366316 + ... + 366724.

Almost surely, 2149906680 is an apocalyptic number.

149906680 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 149906680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227156400).

149906680 is an abundant number, since it is smaller than the sum of its proper divisors (304406120).

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

149906680 is a wasteful number, since it uses less digits than its factorization.

149906680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 149906680 is about 12243.6383481382. The cubic root of 149906680 is about 531.2190758470.

The spelling of 149906680 in words is "one hundred forty-nine million, nine hundred six thousand, six hundred eighty".