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155134738 = 21118138959
BaseRepresentation
bin10010011111100…
…10101100010010
3101210220122212001
421033302230102
5304203302423
623221024214
73562423603
oct1117625422
9353818761
10155134738
117a62a030
1243b5506a
13261a9105
1416863daa
15d945cad
hex93f2b12

155134738 has 16 divisors (see below), whose sum is σ = 255265920. Its totient is φ = 70124400.

The previous prime is 155134697. The next prime is 155134781. The reversal of 155134738 is 837431551.

155134738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155134697 and 155134706.

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, 15498 + ... + 23461.

It is an arithmetic number, because the mean of its divisors is an integer number (15954120).

Almost surely, 2155134738 is an apocalyptic number.

155134738 is a deficient number, since it is larger than the sum of its proper divisors (100131182).

155134738 is a wasteful number, since it uses less digits than its factorization.

155134738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39153.

The product of its digits is 50400, while the sum is 37.

The square root of 155134738 is about 12455.3096308362. The cubic root of 155134738 is about 537.3241399082.

The spelling of 155134738 in words is "one hundred fifty-five million, one hundred thirty-four thousand, seven hundred thirty-eight".

Divisors: 1 2 11 22 181 362 1991 3982 38959 77918 428549 857098 7051579 14103158 77567369 155134738