Base | Representation |
---|---|
bin | 1000110110011100101… |
… | …1110010111011001101 |
3 | 112112110222022100222121 |
4 | 2031213023302323031 |
5 | 4442402040011111 |
6 | 153504134212541 |
7 | 13662031116115 |
oct | 2154713627315 |
9 | 475428270877 |
10 | 152055000781 |
11 | 595390a1702 |
12 | 25576ab4151 |
13 | 11453243158 |
14 | 7506686045 |
15 | 3e4e208871 |
hex | 23672f2ecd |
152055000781 has 8 divisors (see below), whose sum is σ = 157419221400. Its totient is φ = 146698843200.
The previous prime is 152055000767. The next prime is 152055000833. The reversal of 152055000781 is 187000550251.
It can be written as a sum of positive squares in 4 ways, for example, as 5339955625 + 146715045156 = 73075^2 + 383034^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 152055000781 - 27 = 152055000653 is a prime.
It is a super-2 number, since 2×1520550007812 (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 (152055000761) 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, 1977366 + ... + 2052823.
It is an arithmetic number, because the mean of its divisors is an integer number (19677402675).
Almost surely, 2152055000781 is an apocalyptic number.
152055000781 is the 174388-th centered decagonal number.
It is an amenable number.
152055000781 is a deficient number, since it is larger than the sum of its proper divisors (5364220619).
152055000781 is a wasteful number, since it uses less digits than its factorization.
152055000781 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4031519.
The product of its (nonzero) digits is 14000, while the sum is 34.
The spelling of 152055000781 in words is "one hundred fifty-two billion, fifty-five million, seven hundred eighty-one", and thus it is an aban number.
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