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2068148915 = 5776872
BaseRepresentation
bin111101101000101…
…0111001010110011
312100010120211221222
41323101113022303
513213421231130
6541115335255
7102151655450
oct17321271263
95303524858
102068148915
11971463988
1249875152b
1326c618471
14158958827
15c1874ce5
hex7b4572b3

2068148915 has 12 divisors (see below), whose sum is σ = 2836687536. Its totient is φ = 1417974768.

The previous prime is 2068148909. The next prime is 2068148921. The reversal of 2068148915 is 5198418602.

It is an interprime number because it is at equal distance from previous prime (2068148909) and next prime (2068148921).

It is a de Polignac number, because none of the positive numbers 2k-2068148915 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265202 + ... + 272888.

It is an arithmetic number, because the mean of its divisors is an integer number (236390628).

Almost surely, 22068148915 is an apocalyptic number.

2068148915 is a deficient number, since it is larger than the sum of its proper divisors (768538621).

2068148915 is an frugal number, since it uses more digits than its factorization.

2068148915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15386 (or 7699 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 2068148915 is about 45476.9052926867. The cubic root of 2068148915 is about 1274.0718946092.

It can be divided in two parts, 20681 and 48915, that added together give a palindrome (69596).

The spelling of 2068148915 in words is "two billion, sixty-eight million, one hundred forty-eight thousand, nine hundred fifteen".

Divisors: 1 5 7 35 7687 38435 53809 269045 59089969 295449845 413629783 2068148915