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214520025412 = 227112405715607
BaseRepresentation
bin1100011111001001100…
…0111101000101000100
3202111201021021101211101
43013302120331011010
512003314111303122
6242314340345444
721333002062420
oct3076230750504
9674637241741
10214520025412
1182a82a64200
12356aa3a5284
13172c95a4ca4
14a550683b80
1558a8079027
hex31f263d144

214520025412 has 72 divisors (see below), whose sum is σ = 471735942272. Its totient is φ = 83553275520.

The previous prime is 214520025409. The next prime is 214520025413.

It is a happy number.

214520025412 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (214520025413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13737313 + ... + 13752919.

Almost surely, 2214520025412 is an apocalyptic number.

214520025412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214520025412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235867971136).

214520025412 is an abundant number, since it is smaller than the sum of its proper divisors (257215916860).

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

214520025412 is a wasteful number, since it uses less digits than its factorization.

214520025412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19697 (or 19684 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 214520025412 in words is "two hundred fourteen billion, five hundred twenty million, twenty-five thousand, four hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 121 154 242 308 484 847 1694 3388 4057 8114 15607 16228 28399 31214 44627 56798 62428 89254 109249 113596 171677 178508 218498 312389 343354 436996 490897 624778 686708 981794 1201739 1249556 1888447 1963588 2403478 3436279 3776894 4806956 6872558 7553788 13219129 13745116 26438258 52876516 63317599 126635198 253270396 443223193 696493589 886446386 1392987178 1772892772 2785974356 4875455123 7661429479 9750910246 15322858958 19501820492 30645717916 53630006353 107260012706 214520025412