Search a number
-
+
28574748372 = 22323103531697
BaseRepresentation
bin11010100111001100…
…000000111011010100
32201202102102121200210
4122213030000323110
5432010113421442
621043240005420
72031052232202
oct324714007324
981672377623
1028574748372
1111133778425
125655760870
132905014a41
141551042072
15b2394719c
hex6a7300ed4

28574748372 has 24 divisors (see below), whose sum is σ = 69573301056. Its totient is φ = 9110789248.

The previous prime is 28574748283. The next prime is 28574748373. The reversal of 28574748372 is 27384747582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574748373) 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, 51765573 + ... + 51766124.

It is an arithmetic number, because the mean of its divisors is an integer number (2898887544).

Almost surely, 228574748372 is an apocalyptic number.

It is an amenable number.

28574748372 is an abundant number, since it is smaller than the sum of its proper divisors (40998552684).

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

28574748372 is a wasteful number, since it uses less digits than its factorization.

28574748372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103531727 (or 103531725 counting only the distinct ones).

The product of its digits is 21073920, while the sum is 57.

The spelling of 28574748372 in words is "twenty-eight billion, five hundred seventy-four million, seven hundred forty-eight thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 103531697 207063394 310595091 414126788 621190182 1242380364 2381229031 4762458062 7143687093 9524916124 14287374186 28574748372