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1015100223013 = 191032691928261
BaseRepresentation
bin11101100010110001011…
…00000010111000100101
310121001011002011020022001
432301120230002320211
5113112411124114023
62054155224405301
7133224062346562
oct16613054027045
93531132136261
101015100223013
11361557680a48
12144897016831
1374953805a46
14371b9ab9869
151b6122766ad
hexec58b02e25

1015100223013 has 16 divisors (see below), whose sum is σ = 1082911939200. Its totient is φ = 948796476480.

The previous prime is 1015100222963. The next prime is 1015100223019. The reversal of 1015100223013 is 3103220015101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1015100223013 is a prime.

It is a super-2 number, since 2×10151002230132 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015100223019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437698 + ... + 1490563.

It is an arithmetic number, because the mean of its divisors is an integer number (67681996200).

Almost surely, 21015100223013 is an apocalyptic number.

It is an amenable number.

1015100223013 is a deficient number, since it is larger than the sum of its proper divisors (67811716187).

1015100223013 is a wasteful number, since it uses less digits than its factorization.

1015100223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928652.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 1015100223013 its reverse (3103220015101), we get a palindrome (4118320238114).

The spelling of 1015100223013 in words is "one trillion, fifteen billion, one hundred million, two hundred twenty-three thousand, thirteen".

Divisors: 1 19 103 269 1957 5111 27707 526433 1928261 36636959 198610883 518702209 3773606777 9855341971 53426327527 1015100223013