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2172070602 = 2321334926597
BaseRepresentation
bin1000000101110111…
…0010101011001010
312121101010121201100
42001131302223022
513422022224402
6555311002230
7104553203232
oct20135625312
95541117640
102172070602
11a15093879
12507509376
13288002ca0
1416868acc2
15caa5171c
hex81772aca

2172070602 has 48 divisors (see below), whose sum is σ = 5082877800. Its totient is φ = 666389376.

The previous prime is 2172070561. The next prime is 2172070609. The reversal of 2172070602 is 2060702712.

It can be written as a sum of positive squares in 4 ways, for example, as 2055624921 + 116445681 = 45339^2 + 10791^2 .

It is not an unprimeable number, because it can be changed into a prime (2172070609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68368 + ... + 94964.

Almost surely, 22172070602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2172070602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2541438900).

2172070602 is an abundant number, since it is smaller than the sum of its proper divisors (2910807198).

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

2172070602 is a wasteful number, since it uses less digits than its factorization.

2172070602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26967 (or 26964 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 2172070602 is about 46605.4782402241. The cubic root of 2172070602 is about 1295.0642429234.

The spelling of 2172070602 in words is "two billion, one hundred seventy-two million, seventy thousand, six hundred two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 349 698 1047 2094 3141 4537 6282 9074 13611 26597 27222 40833 53194 79791 81666 159582 239373 345761 478746 691522 1037283 2074566 3111849 6223698 9282353 18564706 27847059 55694118 83541177 120670589 167082354 241341178 362011767 724023534 1086035301 2172070602