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148170690 = 23254338287
BaseRepresentation
bin10001101010011…
…10011111000010
3101022210211222100
420311032133002
5300412430230
622411451230
73446300343
oct1065163702
9338724870
10148170690
1176702918
1241756b16
132490b385
14159700ca
15d01c660
hex8d4e7c2

148170690 has 48 divisors (see below), whose sum is σ = 394213248. Its totient is φ = 38592288.

The previous prime is 148170677. The next prime is 148170707. The reversal of 148170690 is 96071841.

148170690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1481706902 = 43909106750152200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15274 + ... + 23013.

It is an arithmetic number, because the mean of its divisors is an integer number (8212776).

Almost surely, 2148170690 is an apocalyptic number.

148170690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148170690 is an abundant number, since it is smaller than the sum of its proper divisors (246042558).

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

148170690 is a wasteful number, since it uses less digits than its factorization.

148170690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38343 (or 38340 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 148170690 is about 12172.5383548379. The cubic root of 148170690 is about 529.1605198479.

The spelling of 148170690 in words is "one hundred forty-eight million, one hundred seventy thousand, six hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 43 45 86 90 129 215 258 387 430 645 774 1290 1935 3870 38287 76574 114861 191435 229722 344583 382870 574305 689166 1148610 1646341 1722915 3292682 3445830 4939023 8231705 9878046 14817069 16463410 24695115 29634138 49390230 74085345 148170690