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133122552 = 23310751839
BaseRepresentation
bin1111110111101…
…00100111111000
3100021111022210220
413323310213320
5233034410202
621113140040
73204344253
oct773644770
9307438726
10133122552
1169164a42
12386ba620
132176cb54
141397409a
15ba48abc
hex7ef49f8

133122552 has 32 divisors (see below), whose sum is σ = 335923200. Its totient is φ = 43958624.

The previous prime is 133122541. The next prime is 133122571. The reversal of 133122552 is 255221331.

It is a happy number.

133122552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1331225522 = 35443227701985408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23352 + ... + 28487.

It is an arithmetic number, because the mean of its divisors is an integer number (10497600).

Almost surely, 2133122552 is an apocalyptic number.

133122552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133122552 is an abundant number, since it is smaller than the sum of its proper divisors (202800648).

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

133122552 is a wasteful number, since it uses less digits than its factorization.

133122552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51955 (or 51951 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 133122552 is about 11537.8746743064. The cubic root of 133122552 is about 510.6036067387.

Adding to 133122552 its reverse (255221331), we get a palindrome (388343883).

The spelling of 133122552 in words is "one hundred thirty-three million, one hundred twenty-two thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 107 214 321 428 642 856 1284 2568 51839 103678 155517 207356 311034 414712 622068 1244136 5546773 11093546 16640319 22187092 33280638 44374184 66561276 133122552