Search a number
-
+
7072103803557 = 3133175631016053
BaseRepresentation
bin110011011101001101000…
…1111000010101010100101
3221001002100001222201012010
41212322122033002222211
51411332132033203212
623012514000144433
71326641216325012
oct146723217025245
927032301881163
107072103803557
112287298256141
12962755308119
133c3b86893150
141a6412408709
15c3e6587903c
hex66e9a3c2aa5

7072103803557 has 32 divisors (see below), whose sum is σ = 10204953752448. Its totient is φ = 4330624962816.

The previous prime is 7072103803519. The next prime is 7072103803573. The reversal of 7072103803557 is 7553083012707.

It is not a de Polignac number, because 7072103803557 - 26 = 7072103803493 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7072103803507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6452343 + ... + 7468395.

It is an arithmetic number, because the mean of its divisors is an integer number (318904804764).

Almost surely, 27072103803557 is an apocalyptic number.

It is an amenable number.

7072103803557 is a deficient number, since it is larger than the sum of its proper divisors (3132849948891).

7072103803557 is a wasteful number, since it uses less digits than its factorization.

7072103803557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016949.

The product of its (nonzero) digits is 1234800, while the sum is 48.

The spelling of 7072103803557 in words is "seven trillion, seventy-two billion, one hundred three million, eight hundred three thousand, five hundred fifty-seven".

Divisors: 1 3 13 39 317 563 951 1689 4121 7319 12363 21957 178471 535413 1016053 2320123 3048159 6960369 13208689 39626067 322088801 572037839 966266403 1716113517 4187154413 7436491907 12561463239 22309475721 181335994963 544007984889 2357367934519 7072103803557