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155223016255 = 531044603251
BaseRepresentation
bin1001000010010000000…
…0110100001100111111
3112211122202111020020001
42100210000310030333
510020344043010010
6155150343535131
714133366603616
oct2204400641477
9484582436201
10155223016255
115a91438960a
12260bba5a4a7
1311839693618
14772730687d
1540873d9c3a
hex242403433f

155223016255 has 4 divisors (see below), whose sum is σ = 186267619512. Its totient is φ = 124178413000.

The previous prime is 155223016217. The next prime is 155223016301. The reversal of 155223016255 is 552610322551.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 155223016255 - 211 = 155223014207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15522301621 + ... + 15522301630.

It is an arithmetic number, because the mean of its divisors is an integer number (46566904878).

Almost surely, 2155223016255 is an apocalyptic number.

155223016255 is a deficient number, since it is larger than the sum of its proper divisors (31044603257).

155223016255 is an equidigital number, since it uses as much as digits as its factorization.

155223016255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31044603256.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 155223016255 in words is "one hundred fifty-five billion, two hundred twenty-three million, sixteen thousand, two hundred fifty-five".

Divisors: 1 5 31044603251 155223016255