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30784229070 = 2357146591567
BaseRepresentation
bin11100101010111000…
…100000111011001110
32221110101221212102020
4130222320200323032
51001021230312240
622050404511010
72136601425660
oct345270407316
987411855366
1030784229070
1112067992a31
125b716ab466
132b979b577a
1416c066a530
15c028d80d0
hex72ae20ece

30784229070 has 32 divisors (see below), whose sum is σ = 84436743168. Its totient is φ = 7036395168.

The previous prime is 30784229053. The next prime is 30784229093. The reversal of 30784229070 is 7092248703.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73295574 + ... + 73295993.

It is an arithmetic number, because the mean of its divisors is an integer number (2638648224).

Almost surely, 230784229070 is an apocalyptic number.

30784229070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30784229070 is an abundant number, since it is smaller than the sum of its proper divisors (53652514098).

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

30784229070 is a wasteful number, since it uses less digits than its factorization.

30784229070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146591584.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 30784229070 in words is "thirty billion, seven hundred eighty-four million, two hundred twenty-nine thousand, seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 146591567 293183134 439774701 732957835 879549402 1026140969 1465915670 2052281938 2198873505 3078422907 4397747010 5130704845 6156845814 10261409690 15392114535 30784229070