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149902210 = 2519788959
BaseRepresentation
bin10001110111101…
…01001110000010
3101110001211011201
420323311032002
5301333332320
622512531414
73500101453
oct1073651602
9343054151
10149902210
1177685827
1242250b6a
1325096543
1415ca112a
15d26070a
hex8ef5382

149902210 has 16 divisors (see below), whose sum is σ = 284025600. Its totient is φ = 56804976.

The previous prime is 149902169. The next prime is 149902213. The reversal of 149902210 is 12209941.

It is a happy number.

149902210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (149902213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394290 + ... + 394669.

It is an arithmetic number, because the mean of its divisors is an integer number (17751600).

Almost surely, 2149902210 is an apocalyptic number.

149902210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149902210 is a deficient number, since it is larger than the sum of its proper divisors (134123390).

149902210 is a wasteful number, since it uses less digits than its factorization.

149902210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788985.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 149902210 is about 12243.4558029994. The cubic root of 149902210 is about 531.2137957335.

The spelling of 149902210 in words is "one hundred forty-nine million, nine hundred two thousand, two hundred ten".

Divisors: 1 2 5 10 19 38 95 190 788959 1577918 3944795 7889590 14990221 29980442 74951105 149902210