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4345512380 = 2251119752329
BaseRepresentation
bin1000000110000001…
…10100000110111100
3102012211211220022222
410003000310012330
532344422344010
61555111224512
7212454150206
oct40300640674
912184756288
104345512380
11192aa23850
12a13378138
13543396101
142d31b3776
151a6774355
hex1030341bc

4345512380 has 24 divisors (see below), whose sum is σ = 9955174320. Its totient is φ = 1580186240.

The previous prime is 4345512377. The next prime is 4345512403. The reversal of 4345512380 is 832155434.

It is a self number, because there is not a number n which added to its sum of digits gives 4345512380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9875945 + ... + 9876384.

It is an arithmetic number, because the mean of its divisors is an integer number (414798930).

Almost surely, 24345512380 is an apocalyptic number.

It is an amenable number.

4345512380 is an abundant number, since it is smaller than the sum of its proper divisors (5609661940).

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

4345512380 is a wasteful number, since it uses less digits than its factorization.

4345512380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19752349 (or 19752347 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 4345512380 is about 65920.5004531974. The cubic root of 4345512380 is about 1631.8503558284.

The spelling of 4345512380 in words is "four billion, three hundred forty-five million, five hundred twelve thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 19752329 39504658 79009316 98761645 197523290 217275619 395046580 434551238 869102476 1086378095 2172756190 4345512380