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148748394 = 23157157907
BaseRepresentation
bin10001101110110…
…11100001101010
3101100220012102210
420313123201222
5301034422034
622432105550
73454224534
oct1067334152
9340805383
10148748394
1176a67963
12419952b6
1324a81302
1415a80854
15d0d38e9
hex8ddb86a

148748394 has 16 divisors (see below), whose sum is σ = 299393568. Its totient is φ = 49266672.

The previous prime is 148748393. The next prime is 148748417. The reversal of 148748394 is 493847841.

It is not an unprimeable number, because it can be changed into a prime (148748393) 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, 78012 + ... + 79895.

It is an arithmetic number, because the mean of its divisors is an integer number (18712098).

Almost surely, 2148748394 is an apocalyptic number.

148748394 is an abundant number, since it is smaller than the sum of its proper divisors (150645174).

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

148748394 is a wasteful number, since it uses less digits than its factorization.

148748394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158069.

The product of its digits is 774144, while the sum is 48.

The square root of 148748394 is about 12196.2450778918. The cubic root of 148748394 is about 529.8473441919.

The spelling of 148748394 in words is "one hundred forty-eight million, seven hundred forty-eight thousand, three hundred ninety-four".

Divisors: 1 2 3 6 157 314 471 942 157907 315814 473721 947442 24791399 49582798 74374197 148748394