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149160220 = 225113121871
BaseRepresentation
bin10001110010000…
…00000100011100
3101101200010100121
420321000010130
5301141111340
622445004324
73460561306
oct1071000434
9341603317
10149160220
1177219310
1241b536a4
1324b968b1
1415b4a976
15d16594a
hex8e4011c

149160220 has 48 divisors (see below), whose sum is σ = 352751616. Its totient is φ = 52488000.

The previous prime is 149160217. The next prime is 149160223. The reversal of 149160220 is 22061941.

It is an interprime number because it is at equal distance from previous prime (149160217) and next prime (149160223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149160223) 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, 4116 + ... + 17755.

It is an arithmetic number, because the mean of its divisors is an integer number (7348992).

Almost surely, 2149160220 is an apocalyptic number.

149160220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149160220 is an abundant number, since it is smaller than the sum of its proper divisors (203591396).

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

149160220 is a wasteful number, since it uses less digits than its factorization.

149160220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21922 (or 21920 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 149160220 is about 12213.1167193309. The cubic root of 149160220 is about 530.3358734931.

The spelling of 149160220 in words is "one hundred forty-nine million, one hundred sixty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 3410 6820 21871 43742 87484 109355 218710 240581 437420 481162 678001 962324 1202905 1356002 2405810 2712004 3390005 4811620 6780010 7458011 13560020 14916022 29832044 37290055 74580110 149160220