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155252125 = 537177431
BaseRepresentation
bin10010100000011…
…11010110011101
3101211010121212201
421100033112131
5304221032000
623223331501
73563423050
oct1120172635
9354117781
10155252125
117a6aa246
1243bb0b91
132621a682
1416894a97
15d96a96a
hex940f59d

155252125 has 16 divisors (see below), whose sum is σ = 221435136. Its totient is φ = 106458000.

The previous prime is 155252113. The next prime is 155252131. The reversal of 155252125 is 521252551.

155252125 = T102 + T103 + ... + T976.

155252125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155252125 - 27 = 155251997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155252093 and 155252102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87841 + ... + 89590.

It is an arithmetic number, because the mean of its divisors is an integer number (13839696).

Almost surely, 2155252125 is an apocalyptic number.

It is an amenable number.

155252125 is a deficient number, since it is larger than the sum of its proper divisors (66183011).

155252125 is an equidigital number, since it uses as much as digits as its factorization.

155252125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177453 (or 177443 counting only the distinct ones).

The product of its digits is 5000, while the sum is 28.

The square root of 155252125 is about 12460.0210673979. The cubic root of 155252125 is about 537.4596328076.

The spelling of 155252125 in words is "one hundred fifty-five million, two hundred fifty-two thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 875 177431 887155 1242017 4435775 6210085 22178875 31050425 155252125