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148912930 = 2515794849
BaseRepresentation
bin10001110000000…
…11101100100010
3101101012120010201
420320003230202
5301110203210
622435415414
73455511325
oct1070035442
9341176121
10148912930
117706a541
1241a5456a
1324b0b17a
1415ac47bc
15d11753a
hex8e03b22

148912930 has 16 divisors (see below), whose sum is σ = 269753400. Its totient is φ = 59185152.

The previous prime is 148912889. The next prime is 148912963. The reversal of 148912930 is 39219841.

It can be written as a sum of positive squares in 4 ways, for example, as 64144081 + 84768849 = 8009^2 + 9207^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 148912930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45855 + ... + 48994.

Almost surely, 2148912930 is an apocalyptic number.

148912930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148912930 is a deficient number, since it is larger than the sum of its proper divisors (120840470).

148912930 is a wasteful number, since it uses less digits than its factorization.

148912930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95013.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 148912930 is about 12202.9885683795. The cubic root of 148912930 is about 530.0426333333.

The spelling of 148912930 in words is "one hundred forty-eight million, nine hundred twelve thousand, nine hundred thirty".

Divisors: 1 2 5 10 157 314 785 1570 94849 189698 474245 948490 14891293 29782586 74456465 148912930