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201257480508 = 223717140936611
BaseRepresentation
bin1011101101101111100…
…0010111000100111100
3201020110222110022110120
42323123320113010330
511244133403334013
6232242330134540
720353230233640
oct2733370270474
9636428408416
10201257480508
1178397667997
1233008881450
1315c949ba896
149a530d4c20
15537da66123
hex2edbe1713c

201257480508 has 48 divisors (see below), whose sum is σ = 568256419584. Its totient is φ = 54119658240.

The previous prime is 201257480503. The next prime is 201257480513. The reversal of 201257480508 is 805084752102.

201257480508 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201257480503) and next prime (201257480513).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 201257480508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201257480503) 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, 70466878 + ... + 70469733.

It is an arithmetic number, because the mean of its divisors is an integer number (11838675408).

Almost surely, 2201257480508 is an apocalyptic number.

201257480508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

201257480508 is an abundant number, since it is smaller than the sum of its proper divisors (366998939076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201257480508 is a wasteful number, since it uses less digits than its factorization.

201257480508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140936642 (or 140936640 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The spelling of 201257480508 in words is "two hundred one billion, two hundred fifty-seven million, four hundred eighty thousand, five hundred eight".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 42 51 68 84 102 119 204 238 357 476 714 1428 140936611 281873222 422809833 563746444 845619666 986556277 1691239332 1973112554 2395922387 2959668831 3946225108 4791844774 5919337662 7187767161 9583689548 11838675324 14375534322 16771456709 28751068644 33542913418 50314370127 67085826836 100628740254 201257480508