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155214140161 = 613407746843
BaseRepresentation
bin1001000010001101111…
…0111101001100000001
3112211122010210021111211
42100203132331030001
510020334304441121
6155145425410121
714133231265033
oct2204336751401
9484563707454
10155214140161
115a90a3768a3
12260b8a99941
13118378a64b2
147726075c53
154086734ce1
hex24237bd301

155214140161 has 8 divisors (see below), whose sum is σ = 157805149824. Its totient is φ = 152624631120.

The previous prime is 155214140143. The next prime is 155214140203. The reversal of 155214140161 is 161041412551.

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 155214140161 - 211 = 155214138113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155214140101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165595 + ... + 581248.

It is an arithmetic number, because the mean of its divisors is an integer number (19725643728).

Almost surely, 2155214140161 is an apocalyptic number.

It is an amenable number.

155214140161 is a deficient number, since it is larger than the sum of its proper divisors (2591009663).

155214140161 is an equidigital number, since it uses as much as digits as its factorization.

155214140161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750311.

The product of its (nonzero) digits is 4800, while the sum is 31.

The spelling of 155214140161 in words is "one hundred fifty-five billion, two hundred fourteen million, one hundred forty thousand, one hundred sixty-one".

Divisors: 1 61 3407 207827 746843 45557423 2544494101 155214140161