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154145652 = 22312845471
BaseRepresentation
bin10010011000000…
…01001101110100
3101202001102002020
421030001031310
5303430130102
623143513140
73551134143
oct1114011564
9352042066
10154145652
117a013a01
12437587b0
1325c20b5b
141668775a
15d7ecbbc
hex9301374

154145652 has 12 divisors (see below), whose sum is σ = 359673216. Its totient is φ = 51381880.

The previous prime is 154145633. The next prime is 154145653. The reversal of 154145652 is 256541451.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154145653) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6422724 + ... + 6422747.

It is an arithmetic number, because the mean of its divisors is an integer number (29972768).

Almost surely, 2154145652 is an apocalyptic number.

154145652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

154145652 is an abundant number, since it is smaller than the sum of its proper divisors (205527564).

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

154145652 is a wasteful number, since it uses less digits than its factorization.

154145652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12845478 (or 12845476 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 154145652 is about 12415.5407453723. The cubic root of 154145652 is about 536.1797728086.

The spelling of 154145652 in words is "one hundred fifty-four million, one hundred forty-five thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 12845471 25690942 38536413 51381884 77072826 154145652