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148962820 = 2257448141
BaseRepresentation
bin10001110000011…
…11111000000100
3101101022002120111
420320033320010
5301113302240
622440442404
73456106636
oct1070177004
9341262514
10148962820
11770a3a76
1241a79404
1324b27aa6
1415ad8a56
15d1271ea
hex8e0fe04

148962820 has 12 divisors (see below), whose sum is σ = 312821964. Its totient is φ = 59585120.

The previous prime is 148962809. The next prime is 148962833. The reversal of 148962820 is 28269841.

It can be written as a sum of positive squares in 2 ways, for example, as 41964484 + 106998336 = 6478^2 + 10344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3724051 + ... + 3724090.

It is an arithmetic number, because the mean of its divisors is an integer number (26068497).

Almost surely, 2148962820 is an apocalyptic number.

148962820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148962820 is an abundant number, since it is smaller than the sum of its proper divisors (163859144).

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

148962820 is a wasteful number, since it uses less digits than its factorization.

148962820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448150 (or 7448148 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 148962820 is about 12205.0325685760. The cubic root of 148962820 is about 530.1018197638.

The spelling of 148962820 in words is "one hundred forty-eight million, nine hundred sixty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 7448141 14896282 29792564 37240705 74481410 148962820