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149960538 = 23371330517
BaseRepresentation
bin10001111000000…
…11011101011010
3101110011210012000
420330003131122
5301342214123
622514101430
73500433510
oct1074033532
9343153160
10149960538
1177715632
124227a876
13250b6c60
1415cb84b0
15d272b43
hex8f0375a

149960538 has 64 divisors (see below), whose sum is σ = 410161920. Its totient is φ = 39548736.

The previous prime is 149960533. The next prime is 149960549. The reversal of 149960538 is 835069941.

It is a happy number.

149960538 is a `hidden beast` number, since 1 + 4 + 9 + 9 + 605 + 38 = 666.

149960538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149960493 and 149960502.

It is not an unprimeable number, because it can be changed into a prime (149960533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10345 + ... + 20172.

It is an arithmetic number, because the mean of its divisors is an integer number (6408780).

Almost surely, 2149960538 is an apocalyptic number.

149960538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

149960538 is an abundant number, since it is smaller than the sum of its proper divisors (260201382).

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

149960538 is a wasteful number, since it uses less digits than its factorization.

149960538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30548 (or 30542 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 149960538 is about 12245.8375785407. The cubic root of 149960538 is about 531.2826864687.

The spelling of 149960538 in words is "one hundred forty-nine million, nine hundred sixty thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 91 117 126 182 189 234 273 351 378 546 702 819 1638 2457 4914 30517 61034 91551 183102 213619 274653 396721 427238 549306 640857 793442 823959 1190163 1281714 1647918 1922571 2380326 2777047 3570489 3845142 5554094 5767713 7140978 8331141 10711467 11535426 16662282 21422934 24993423 49986846 74980269 149960538