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2257688601 = 32771683739
BaseRepresentation
bin1000011010010001…
…1001100000011001
312211100020110112100
42012210121200121
514110432013401
61012010034013
7106643015340
oct20644314031
95740213470
102257688601
11a59451953
12530118909
1329c97c51c
14175bb6b57
15d3314b86
hex86919819

2257688601 has 48 divisors (see below), whose sum is σ = 3790126080. Its totient is φ = 1268356320.

The previous prime is 2257688597. The next prime is 2257688603. The reversal of 2257688601 is 1068867522.

It is not a de Polignac number, because 2257688601 - 22 = 2257688597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2257688603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3054690 + ... + 3055428.

It is an arithmetic number, because the mean of its divisors is an integer number (78960960).

Almost surely, 22257688601 is an apocalyptic number.

2257688601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2257688601 is a deficient number, since it is larger than the sum of its proper divisors (1532437479).

2257688601 is a wasteful number, since it uses less digits than its factorization.

2257688601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 2257688601 is about 47515.1407553424. The cubic root of 2257688601 is about 1311.8615805613.

The spelling of 2257688601 in words is "two billion, two hundred fifty-seven million, six hundred eighty-eight thousand, six hundred one".

Divisors: 1 3 7 9 21 63 71 213 497 639 683 739 1491 2049 2217 4473 4781 5173 6147 6651 14343 15519 43029 46557 48493 52469 145479 157407 339451 367283 436437 472221 504737 1018353 1101849 1514211 3055059 3305547 3533159 4542633 10599477 31798431 35836327 107508981 250854289 322526943 752562867 2257688601