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149790720 = 213352353
BaseRepresentation
bin10001110110110…
…10000000000000
3101102212011020110
420323122000000
5301321300340
622510311320
73466125432
oct1073320000
9342764213
10149790720
1177609a92
12421b8540
1325057881
1415c72652
15d23c680
hex8eda000

149790720 has 224 divisors, whose sum is σ = 509576832. Its totient is φ = 37486592.

The previous prime is 149790679. The next prime is 149790727. The reversal of 149790720 is 27097941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149790727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2826214 + ... + 2826266.

Almost surely, 2149790720 is an apocalyptic number.

149790720 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 149790720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254788416).

149790720 is an abundant number, since it is smaller than the sum of its proper divisors (359786112).

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

149790720 is an equidigital number, since it uses as much as digits as its factorization.

149790720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 149790720 is about 12238.9019115278. The cubic root of 149790720 is about 531.0820660432.

The spelling of 149790720 in words is "one hundred forty-nine million, seven hundred ninety thousand, seven hundred twenty".