Search a number
-
+
30148702458 = 2372102546607
BaseRepresentation
bin11100000101000000…
…001011000011111010
32212211010002202210120
4130011000023003322
5443221031434313
621503343154110
72115053512500
oct340500130372
985733082716
1030148702458
111187117a426
125a148a5936
132ac612b514
1416600b6670
15bb6bedd23
hex70500b0fa

30148702458 has 24 divisors (see below), whose sum is σ = 70141879872. Its totient is φ = 8613914904.

The previous prime is 30148702453. The next prime is 30148702511. The reversal of 30148702458 is 85420784103.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (30148702453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51273010 + ... + 51273597.

It is an arithmetic number, because the mean of its divisors is an integer number (2922578328).

Almost surely, 230148702458 is an apocalyptic number.

30148702458 is an abundant number, since it is smaller than the sum of its proper divisors (39993177414).

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

30148702458 is a wasteful number, since it uses less digits than its factorization.

30148702458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102546626 (or 102546619 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 30148702458 in words is "thirty billion, one hundred forty-eight million, seven hundred two thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 102546607 205093214 307639821 615279642 717826249 1435652498 2153478747 4306957494 5024783743 10049567486 15074351229 30148702458