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149658930 = 232523197367
BaseRepresentation
bin10001110101110…
…01110100110010
3101102121110110100
420322321310302
5301303041210
622503413230
73465036261
oct1072716462
9342543410
10149658930
1177529a73
1242154216
132500c8a5
1415c3a5d8
15d2135c0
hex8eb9d32

149658930 has 96 divisors (see below), whose sum is σ = 409204224. Its totient is φ = 37876608.

The previous prime is 149658923. The next prime is 149658941. The reversal of 149658930 is 39856941.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 407607 + ... + 407973.

It is an arithmetic number, because the mean of its divisors is an integer number (4262544).

Almost surely, 2149658930 is an apocalyptic number.

149658930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149658930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204602112).

149658930 is an abundant number, since it is smaller than the sum of its proper divisors (259545294).

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

149658930 is a wasteful number, since it uses less digits than its factorization.

149658930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 597 counting only the distinct ones).

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

The square root of 149658930 is about 12233.5166652929. The cubic root of 149658930 is about 530.9262668004.

The spelling of 149658930 in words is "one hundred forty-nine million, six hundred fifty-eight thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 197 207 230 345 367 394 414 591 690 734 985 1035 1101 1182 1773 1835 1970 2070 2202 2955 3303 3546 3670 4531 5505 5910 6606 8441 8865 9062 11010 13593 16515 16882 17730 22655 25323 27186 33030 40779 42205 45310 50646 67965 72299 75969 81558 84410 126615 135930 144598 151938 203895 216897 253230 361495 379845 407790 433794 650691 722990 759690 1084485 1301382 1662877 2168970 3253455 3325754 4988631 6506910 8314385 9977262 14965893 16628770 24943155 29931786 49886310 74829465 149658930