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155135068 = 221122511277
BaseRepresentation
bin10010011111100…
…10110001011100
3101210220200022021
421033302301130
5304203310233
623221025524
73562424554
oct1117626134
9353820267
10155135068
117a62a300
1243b552a4
13261a92ca
1416864164
15d945e2d
hex93f2c5c

155135068 has 36 divisors (see below), whose sum is σ = 299834136. Its totient is φ = 70180000.

The previous prime is 155135063. The next prime is 155135077. The reversal of 155135068 is 860531551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155135063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120846 + ... + 122122.

It is an arithmetic number, because the mean of its divisors is an integer number (8328726).

Almost surely, 2155135068 is an apocalyptic number.

It is an amenable number.

155135068 is a deficient number, since it is larger than the sum of its proper divisors (144699068).

155135068 is a wasteful number, since it uses less digits than its factorization.

155135068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 155135068 is about 12455.3228781915. The cubic root of 155135068 is about 537.3245209035.

The spelling of 155135068 in words is "one hundred fifty-five million, one hundred thirty-five thousand, sixty-eight".

Divisors: 1 2 4 11 22 44 121 242 251 484 502 1004 1277 2554 2761 5108 5522 11044 14047 28094 30371 56188 60742 121484 154517 309034 320527 618068 641054 1282108 3525797 7051594 14103188 38783767 77567534 155135068