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148651812 = 22327195743
BaseRepresentation
bin10001101110000…
…11111100100100
3101100201021221200
420313003330210
5301023324222
622430042500
73453343131
oct1067037444
9340637850
10148651812
1176a01341
1241949430
1324a4936a
1415a57588
15d0b4eac
hex8dc3f24

148651812 has 36 divisors (see below), whose sum is σ = 376346880. Its totient is φ = 49473072.

The previous prime is 148651781. The next prime is 148651823. The reversal of 148651812 is 218156841.

148651812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1486518122 = 44194722421766688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23013 + ... + 28755.

It is an arithmetic number, because the mean of its divisors is an integer number (10454080).

Almost surely, 2148651812 is an apocalyptic number.

148651812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

148651812 is an abundant number, since it is smaller than the sum of its proper divisors (227695068).

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

148651812 is a wasteful number, since it uses less digits than its factorization.

148651812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472 (or 6467 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 148651812 is about 12192.2849376153. The cubic root of 148651812 is about 529.7326431309.

The spelling of 148651812 in words is "one hundred forty-eight million, six hundred fifty-one thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 719 1438 2157 2876 4314 5743 6471 8628 11486 12942 17229 22972 25884 34458 51687 68916 103374 206748 4129217 8258434 12387651 16516868 24775302 37162953 49550604 74325906 148651812