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30899665194 = 237516857449
BaseRepresentation
bin11100110001110000…
…110111100100101010
32221202110011122000020
4130301300313210222
51001240303241234
622110051021310
72142502551306
oct346160674452
987673148006
1030899665194
1112117067892
125ba429a836
132bb58a2278
1416d1b18d06
15c0cadb549
hex731c3792a

30899665194 has 16 divisors (see below), whose sum is σ = 61881628800. Its totient is φ = 10286172000.

The previous prime is 30899665193. The next prime is 30899665207. The reversal of 30899665194 is 49156699803.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30899665193) 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, 3424219 + ... + 3433230.

It is an arithmetic number, because the mean of its divisors is an integer number (3867601800).

Almost surely, 230899665194 is an apocalyptic number.

30899665194 is an abundant number, since it is smaller than the sum of its proper divisors (30981963606).

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

30899665194 is a wasteful number, since it uses less digits than its factorization.

30899665194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6858205.

The product of its (nonzero) digits is 12597120, while the sum is 60.

The spelling of 30899665194 in words is "thirty billion, eight hundred ninety-nine million, six hundred sixty-five thousand, one hundred ninety-four".

Divisors: 1 2 3 6 751 1502 2253 4506 6857449 13714898 20572347 41144694 5149944199 10299888398 15449832597 30899665194