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148298644 = 22139729401
BaseRepresentation
bin10001101011011…
…01101110010100
3101100001100111101
420311231232110
5300431024034
622414315444
73450342364
oct1065555624
9340040441
10148298644
117678aa6a
12417b8b84
13249546a0
14159a49a4
15d045514
hex8d6db94

148298644 has 24 divisors (see below), whose sum is σ = 282376808. Its totient is φ = 67737600.

The previous prime is 148298639. The next prime is 148298669. The reversal of 148298644 is 446892841.

It can be written as a sum of positive squares in 4 ways, for example, as 384400 + 147914244 = 620^2 + 12162^2 .

It is a junction number, because it is equal to n+sod(n) for n = 148298594 and 148298603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9657 + ... + 19744.

Almost surely, 2148298644 is an apocalyptic number.

It is an amenable number.

148298644 is a deficient number, since it is larger than the sum of its proper divisors (134078164).

148298644 is a wasteful number, since it uses less digits than its factorization.

148298644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29515 (or 29513 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 148298644 is about 12177.7930677114. The cubic root of 148298644 is about 529.3127963080.

The spelling of 148298644 in words is "one hundred forty-eight million, two hundred ninety-eight thousand, six hundred forty-four".

Divisors: 1 2 4 13 26 52 97 194 388 1261 2522 5044 29401 58802 117604 382213 764426 1528852 2851897 5703794 11407588 37074661 74149322 148298644