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30889038560 = 255375217743
BaseRepresentation
bin11100110001001000…
…010101001011100000
32221201201011202000012
4130301020111023200
51001230043213220
622105031144052
72142313332002
oct346110251340
987651152005
1030889038560
1112111069946
125ba0815028
132bb3621413
1416d0550372
15c0bbdcac5
hex7312152e0

30889038560 has 48 divisors (see below), whose sum is σ = 74947674816. Its totient is φ = 12021677568.

The previous prime is 30889038547. The next prime is 30889038563. The reversal of 30889038560 is 6583098803.

It is a super-2 number, since 2×308890385602 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30889038499 and 30889038508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30889038563) 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, 2602952 + ... + 2614791.

It is an arithmetic number, because the mean of its divisors is an integer number (1561409892).

Almost surely, 230889038560 is an apocalyptic number.

It is an amenable number.

30889038560 is an abundant number, since it is smaller than the sum of its proper divisors (44058636256).

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

30889038560 is a wasteful number, since it uses less digits than its factorization.

30889038560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217795 (or 5217787 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 30889038560 in words is "thirty billion, eight hundred eighty-nine million, thirty-eight thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 37 40 74 80 148 160 185 296 370 592 740 1184 1480 2960 5920 5217743 10435486 20870972 26088715 41741944 52177430 83483888 104354860 166967776 193056491 208709720 386112982 417419440 772225964 834838880 965282455 1544451928 1930564910 3088903856 3861129820 6177807712 7722259640 15444519280 30889038560