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30038062872 = 2331251585953
BaseRepresentation
bin11011111110011010…
…000111011100011000
32212112101220200211010
4123332122013130120
5443004221002442
621444351533520
72112241215216
oct337632073430
985471820733
1030038062872
1111814781254
1259a382a2a0
132aa9230ccc
14164d515cb6
15bac146b9c
hex6fe687718

30038062872 has 16 divisors (see below), whose sum is σ = 75095157240. Its totient is φ = 10012687616.

The previous prime is 30038062867. The next prime is 30038062877. The reversal of 30038062872 is 27826083003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30038062867) and next prime (30038062877).

It is a super-2 number, since 2×300380628722 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30038062872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30038062877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625792953 + ... + 625793000.

Almost surely, 230038062872 is an apocalyptic number.

It is an amenable number.

30038062872 is an abundant number, since it is smaller than the sum of its proper divisors (45057094368).

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

30038062872 is a wasteful number, since it uses less digits than its factorization.

30038062872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251585962 (or 1251585958 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 30038062872 in words is "thirty billion, thirty-eight million, sixty-two thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 1251585953 2503171906 3754757859 5006343812 7509515718 10012687624 15019031436 30038062872