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2148947013 = 33721191753
BaseRepresentation
bin1000000000010110…
…0101010001000101
312112202121211010010
42000011211101011
513400112301023
6553123220433
7104152514433
oct20005452105
95482554103
102148947013
11a0302a774
124bb817719
13283297ba5
1416558bd53
15c89d5093
hex80165445

2148947013 has 16 divisors (see below), whose sum is σ = 2956680896. Its totient is φ = 1387290240.

The previous prime is 2148946991. The next prime is 2148947023. The reversal of 2148947013 is 3107498412.

It is not a de Polignac number, because 2148947013 - 210 = 2148945989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148947023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22456 + ... + 69297.

It is an arithmetic number, because the mean of its divisors is an integer number (184792556).

Almost surely, 22148947013 is an apocalyptic number.

It is an amenable number.

2148947013 is a deficient number, since it is larger than the sum of its proper divisors (807733883).

2148947013 is a wasteful number, since it uses less digits than its factorization.

2148947013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92004.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2148947013 is about 46356.7364360348. The cubic root of 2148947013 is about 1290.4521406484.

The spelling of 2148947013 in words is "two billion, one hundred forty-eight million, nine hundred forty-seven thousand, thirteen".

Divisors: 1 3 37 111 211 633 7807 23421 91753 275259 3394861 10184583 19359883 58079649 716315671 2148947013