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28961741748 = 2233352171999
BaseRepresentation
bin11010111110010000…
…010001101110110100
32202202101121220210210
4122332100101232310
5433303201213443
621145502345420
72043461512602
oct327620215664
982671556723
1028961741748
111131216a265
12574328b270
1329672510c4
14158a5bc872
15b478dbc33
hex6be411bb4

28961741748 has 24 divisors (see below), whose sum is σ = 67580352000. Its totient is φ = 9653491840.

The previous prime is 28961741741. The next prime is 28961741759. The reversal of 28961741748 is 84714716982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28961741741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366253 + ... + 438251.

It is an arithmetic number, because the mean of its divisors is an integer number (2815848000).

Almost surely, 228961741748 is an apocalyptic number.

It is an amenable number.

28961741748 is an abundant number, since it is smaller than the sum of its proper divisors (38618610252).

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

28961741748 is a wasteful number, since it uses less digits than its factorization.

28961741748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105527 (or 105525 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 57.

The spelling of 28961741748 in words is "twenty-eight billion, nine hundred sixty-one million, seven hundred forty-one thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 33521 67042 71999 100563 134084 143998 201126 215997 287996 402252 431994 863988 2413478479 4826956958 7240435437 9653913916 14480870874 28961741748