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28754228384 = 2571087118093
BaseRepresentation
bin11010110001111000…
…101011010010100000
32202012221011010222122
4122301320223102200
5432342040302014
621113130523412
72035361623430
oct326170532240
982187133878
1028754228384
1111216015412
1256a5896568
13293326602b
14156ac022c0
15b3459b58e
hex6b1e2b4a0

28754228384 has 48 divisors (see below), whose sum is σ = 64757081088. Its totient is φ = 12311799552.

The previous prime is 28754228353. The next prime is 28754228513. The reversal of 28754228384 is 48382245782.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184442 + ... + 302534.

It is an arithmetic number, because the mean of its divisors is an integer number (1349105856).

Almost surely, 228754228384 is an apocalyptic number.

It is an amenable number.

28754228384 is an abundant number, since it is smaller than the sum of its proper divisors (36002852704).

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

28754228384 is a wasteful number, since it uses less digits than its factorization.

28754228384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119197 (or 119189 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 53.

The spelling of 28754228384 in words is "twenty-eight billion, seven hundred fifty-four million, two hundred twenty-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 1087 2174 4348 7609 8696 15218 17392 30436 34784 60872 118093 121744 236186 243488 472372 826651 944744 1653302 1889488 3306604 3778976 6613208 13226416 26452832 128367091 256734182 513468364 898569637 1026936728 1797139274 2053873456 3594278548 4107746912 7188557096 14377114192 28754228384