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152306556 = 22312692213
BaseRepresentation
bin10010001010000…
…00001101111100
3101121120222022120
421011000031330
5302442302211
623040242540
73526404303
oct1105001574
9347528276
10152306556
1178a78196
1243010450
1325728a2c
141632943a
15d587d06
hex914037c

152306556 has 12 divisors (see below), whose sum is σ = 355381992. Its totient is φ = 50768848.

The previous prime is 152306551. The next prime is 152306591. The reversal of 152306556 is 655603251.

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

It is a super-2 number, since 2×1523065562 = 46394574001162272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152306551) 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, 6346095 + ... + 6346118.

It is an arithmetic number, because the mean of its divisors is an integer number (29615166).

Almost surely, 2152306556 is an apocalyptic number.

It is an amenable number.

152306556 is an abundant number, since it is smaller than the sum of its proper divisors (203075436).

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

152306556 is a wasteful number, since it uses less digits than its factorization.

152306556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12692220 (or 12692218 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 152306556 is about 12341.2542312360. The cubic root of 152306556 is about 534.0388671229.

The spelling of 152306556 in words is "one hundred fifty-two million, three hundred six thousand, five hundred fifty-six".

Divisors: 1 2 3 4 6 12 12692213 25384426 38076639 50768852 76153278 152306556