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6215457557053 = 292298291128977
BaseRepresentation
bin101101001110010011000…
…1000111100101000111101
3211000012011220221111100201
41122130212020330220331
51303313224113311203
621115201454123501
71211023555350163
oct132344610745075
924005156844321
106215457557053
111a86a62832a98
128447201b0591
13361165c3c624
14176b88b9d233
15aba294a3e1d
hex5a72623ca3d

6215457557053 has 16 divisors (see below), whose sum is σ = 6465657006000. Its totient is φ = 5967712945152.

The previous prime is 6215457557041. The next prime is 6215457557059. The reversal of 6215457557053 is 3507557545126.

It can be written as a sum of positive squares in 8 ways, for example, as 969401714724 + 5246055842329 = 984582^2 + 2290427^2 .

It is a cyclic number.

It is not a de Polignac number, because 6215457557053 - 241 = 4016434301501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6215457556985 and 6215457557003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6215457557059) 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, 4940901 + ... + 6069877.

It is an arithmetic number, because the mean of its divisors is an integer number (404103562875).

Almost surely, 26215457557053 is an apocalyptic number.

It is an amenable number.

6215457557053 is a deficient number, since it is larger than the sum of its proper divisors (250199448947).

6215457557053 is a wasteful number, since it uses less digits than its factorization.

6215457557053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130064.

The product of its (nonzero) digits is 22050000, while the sum is 55.

The spelling of 6215457557053 in words is "six trillion, two hundred fifteen billion, four hundred fifty-seven million, five hundred fifty-seven thousand, fifty-three".

Divisors: 1 29 229 829 6641 24041 189841 1128977 5505389 32740333 258535733 935921933 7497536257 27141736057 214326122657 6215457557053