Search a number
-
+
428438712866230 = 251131915912203627
BaseRepresentation
bin110000101101010011010100…
…1010010011101010110110110
32002011222100012112202202120001
41201122212221102131112312
5422124014440443204410
64115114005540301514
7156146450463552643
oct14132465122352666
92064870175682501
10428438712866230
11114571924047690
12400763620a189a
131550a79c2648c1
1477b2789982dca
15347ea1a30c33a
hex185a9a949d5b6

428438712866230 has 32 divisors (see below), whose sum is σ = 841300541095680. Its totient is φ = 155795394676320.

The previous prime is 428438712866113. The next prime is 428438712866249. The reversal of 428438712866230 is 32668217834824.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29005677 + ... + 41209303.

It is an arithmetic number, because the mean of its divisors is an integer number (26290641909240).

Almost surely, 2428438712866230 is an apocalyptic number.

428438712866230 is a deficient number, since it is larger than the sum of its proper divisors (412861828229450).

428438712866230 is a wasteful number, since it uses less digits than its factorization.

428438712866230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12522804.

The product of its (nonzero) digits is 148635648, while the sum is 64.

The spelling of 428438712866230 in words is "four hundred twenty-eight trillion, four hundred thirty-eight billion, seven hundred twelve million, eight hundred sixty-six thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 319159 638318 1595795 3191590 3510749 7021498 12203627 17553745 24407254 35107490 61018135 122036270 134239897 268479794 671199485 1342398970 3894897389693 7789794779386 19474486948465 38948973896930 42843871286623 85687742573246 214219356433115 428438712866230