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2164413740 = 225281385127
BaseRepresentation
bin1000000100000010…
…0101010100101100
312120211201121110212
42001000211110230
513413042214430
6554434521552
7104431133066
oct20100452454
95524647425
102164413740
11a10834095
12504a362b8
13286551ab8
14167656736
15ca03cb95
hex8102552c

2164413740 has 24 divisors (see below), whose sum is σ = 4561456032. Its totient is φ = 862682240.

The previous prime is 2164413737. The next prime is 2164413743. The reversal of 2164413740 is 473144612.

It is an interprime number because it is at equal distance from previous prime (2164413737) and next prime (2164413743).

It is a junction number, because it is equal to n+sod(n) for n = 2164413697 and 2164413706.

It is not an unprimeable number, because it can be changed into a prime (2164413743) 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, 186944 + ... + 198183.

It is an arithmetic number, because the mean of its divisors is an integer number (190060668).

Almost surely, 22164413740 is an apocalyptic number.

2164413740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2164413740 is an abundant number, since it is smaller than the sum of its proper divisors (2397042292).

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

2164413740 is a wasteful number, since it uses less digits than its factorization.

2164413740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385417 (or 385415 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 2164413740 is about 46523.2602039023. The cubic root of 2164413740 is about 1293.5406885508.

The spelling of 2164413740 in words is "two billion, one hundred sixty-four million, four hundred thirteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 281 562 1124 1405 2810 5620 385127 770254 1540508 1925635 3851270 7702540 108220687 216441374 432882748 541103435 1082206870 2164413740