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2053081569 = 3711431391487
BaseRepresentation
bin111101001011111…
…1000100111100001
312022002020100110010
41322113320213201
513201042102234
6535420355133
7101606622360
oct17227704741
95262210403
102053081569
11963a02630
124936a5aa9
13269471286
141569557d7
15c039a6e9
hex7a5f89e1

2053081569 has 64 divisors (see below), whose sum is σ = 3519774720. Its totient is φ = 1033542720.

The previous prime is 2053081549. The next prime is 2053081577. The reversal of 2053081569 is 9651803502.

It is not a de Polignac number, because 2053081569 - 27 = 2053081441 is a prime.

It is a super-2 number, since 2×20530815692 = 8430287857935003522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2053081549) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1379944 + ... + 1381430.

It is an arithmetic number, because the mean of its divisors is an integer number (54996480).

Almost surely, 22053081569 is an apocalyptic number.

It is an amenable number.

2053081569 is a deficient number, since it is larger than the sum of its proper divisors (1466693151).

2053081569 is a wasteful number, since it uses less digits than its factorization.

2053081569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 2053081569 is about 45310.9431484272. The cubic root of 2053081569 is about 1270.9702980252.

The spelling of 2053081569 in words is "two billion, fifty-three million, eighty-one thousand, five hundred sixty-nine".

Divisors: 1 3 7 11 21 33 43 77 129 139 231 301 417 473 903 973 1419 1487 1529 2919 3311 4461 4587 5977 9933 10409 10703 16357 17931 31227 32109 41839 49071 63941 65747 114499 125517 191823 197241 206693 343497 447587 460229 620079 703351 1342761 1380687 1446851 2110053 2273623 4340553 4923457 6820869 8887799 14770371 15915361 26663397 47746083 62214593 97765789 186643779 293297367 684360523 2053081569