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155214369031 = 10111313599787
BaseRepresentation
bin1001000010001101111…
…1110101000100000111
3112211122011012220110111
42100203133311010013
510020334334302111
6155145434333451
714133233240221
oct2204337650407
9484564186414
10155214369031
115a90a512847
12260b8b8a287
1311837956717
1477260d5411
15408677ca21
hex24237f5107

155214369031 has 8 divisors (see below), whose sum is σ = 158138334864. Its totient is φ = 152317603200.

The previous prime is 155214369029. The next prime is 155214369049. The reversal of 155214369031 is 130963412551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155214369031 - 21 = 155214369029 is a prime.

It is a super-2 number, since 2×1552143690312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155214369091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6788481 + ... + 6811306.

It is an arithmetic number, because the mean of its divisors is an integer number (19767291858).

Almost surely, 2155214369031 is an apocalyptic number.

155214369031 is a deficient number, since it is larger than the sum of its proper divisors (2923965833).

155214369031 is a wasteful number, since it uses less digits than its factorization.

155214369031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13600001.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 155214369031 in words is "one hundred fifty-five billion, two hundred fourteen million, three hundred sixty-nine thousand, thirty-one".

Divisors: 1 101 113 11413 13599787 1373578487 1536775931 155214369031