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2148570730 = 2519103109789
BaseRepresentation
bin1000000000010000…
…1001011001101010
312112201220200221201
42000010021121222
513400013230410
6553111154414
7104146356415
oct20004113152
95481820851
102148570730
11a028a2a99
124bb675a0a
13283195837
141654d0b7c
15c895d83a
hex8010966a

2148570730 has 32 divisors (see below), whose sum is σ = 4110537600. Its totient is φ = 806283072.

The previous prime is 2148570719. The next prime is 2148570799. The reversal of 2148570730 is 370758412.

It is a self number, because there is not a number n which added to its sum of digits gives 2148570730.

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, 35325 + ... + 74464.

It is an arithmetic number, because the mean of its divisors is an integer number (128454300).

Almost surely, 22148570730 is an apocalyptic number.

2148570730 is a deficient number, since it is larger than the sum of its proper divisors (1961966870).

2148570730 is a wasteful number, since it uses less digits than its factorization.

2148570730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109918.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 2148570730 is about 46352.6777004306. The cubic root of 2148570730 is about 1290.3768163858.

The spelling of 2148570730 in words is "two billion, one hundred forty-eight million, five hundred seventy thousand, seven hundred thirty".

Divisors: 1 2 5 10 19 38 95 103 190 206 515 1030 1957 3914 9785 19570 109789 219578 548945 1097890 2085991 4171982 10429955 11308267 20859910 22616534 56541335 113082670 214857073 429714146 1074285365 2148570730