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30934787548 = 22729107463769
BaseRepresentation
bin11100110011110110…
…110110010111011100
32221211220021000211011
4130303312312113130
51001323301200143
622113343505004
72143410232660
oct346366662734
987756230734
1030934787548
1112134976825
125bb3bb8164
132bbcc4b922
1416d665c8a0
15c10c27e9d
hex733db65dc

30934787548 has 96 divisors (see below), whose sum is σ = 64824883200. Its totient is φ = 12637126656.

The previous prime is 30934787539. The next prime is 30934787551. The reversal of 30934787548 is 84578743903.

It is a super-2 number, since 2×309347875482 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 30934787492 and 30934787501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40226908 + ... + 40227676.

It is an arithmetic number, because the mean of its divisors is an integer number (675259200).

Almost surely, 230934787548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30934787548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32412441600).

30934787548 is an abundant number, since it is smaller than the sum of its proper divisors (33890095652).

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

30934787548 is a wasteful number, since it uses less digits than its factorization.

30934787548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 30934787548 in words is "thirty billion, nine hundred thirty-four million, seven hundred eighty-seven thousand, five hundred forty-eight".

Divisors: 1 2 4 7 14 28 29 58 107 116 203 214 406 428 463 749 769 812 926 1498 1538 1852 2996 3076 3103 3241 5383 6206 6482 10766 12412 12964 13427 21532 21721 22301 26854 43442 44602 49541 53708 82283 86884 89204 93989 99082 156107 164566 187978 198164 312214 329132 346787 356047 375956 575981 624428 693574 712094 1151962 1387148 1424188 1436689 2303924 2386207 2492329 2873378 4772414 4984658 5746756 9544828 9969316 10056823 10325363 16703449 20113646 20650726 33406898 38097029 40227292 41301452 66813796 72277541 76194058 144555082 152388116 266679203 289110164 533358406 1066716812 1104813841 2209627682 4419255364 7733696887 15467393774 30934787548