Search a number
-
+
28758056061048 = 2331933619892569
BaseRepresentation
bin1101000100111110000011…
…01101110100100001111000
310202211020120101001210002020
412202133001231310201320
512232132444322423143
6141055134002234440
76025462303160646
oct642370155644170
9122736511053066
1028758056061048
11918824aa1a906
123285606955a20
131307b47125a72
14715c7c430196
1534d0e2b19883
hex1a27c1b74878

28758056061048 has 32 divisors (see below), whose sum is σ = 71932333822800. Its totient is φ = 9581059531008.

The previous prime is 28758056061001. The next prime is 28758056061083. The reversal of 28758056061048 is 84016065085782.

It is a junction number, because it is equal to n+sod(n) for n = 28758056060982 and 28758056061000.

It is a congruent 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, 309899893 + ... + 309992676.

Almost surely, 228758056061048 is an apocalyptic number.

It is an amenable number.

28758056061048 is an abundant number, since it is smaller than the sum of its proper divisors (43174277761752).

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

28758056061048 is a wasteful number, since it uses less digits than its factorization.

28758056061048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619894511 (or 619894507 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 60.

The spelling of 28758056061048 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty-one thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 1933 3866 5799 7732 11598 15464 23196 46392 619892569 1239785138 1859677707 2479570276 3719355414 4959140552 7438710828 14877421656 1198252335877 2396504671754 3594757007631 4793009343508 7189514015262 9586018687016 14379028030524 28758056061048