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3215240010 = 2325136126249
BaseRepresentation
bin1011111110100100…
…1010101101001010
322022002001010010100
42333221022231022
523041100140020
61251013430230
7142451042403
oct27751125512
98262033110
103215240010
1113aaa12454
1275893b376
133c31764a8
142270349aa
1513c40da90
hexbfa4ab4a

3215240010 has 48 divisors (see below), whose sum is σ = 8366085000. Its totient is φ = 856734720.

The previous prime is 3215240009. The next prime is 3215240011. The reversal of 3215240010 is 100425123.

It is an interprime number because it is at equal distance from previous prime (3215240009) and next prime (3215240011).

It can be written as a sum of positive squares in 4 ways, for example, as 2474366049 + 740873961 = 49743^2 + 27219^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3215240011) 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, 109366 + ... + 135614.

Almost surely, 23215240010 is an apocalyptic number.

3215240010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3215240010 is an abundant number, since it is smaller than the sum of its proper divisors (5150844990).

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

3215240010 is a wasteful number, since it uses less digits than its factorization.

3215240010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27623 (or 27620 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 3215240010 is about 56703.0864239329. The cubic root of 3215240010 is about 1475.9482570488.

Adding to 3215240010 its reverse (100425123), we get a palindrome (3315665133).

The spelling of 3215240010 in words is "three billion, two hundred fifteen million, two hundred forty thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1361 2722 4083 6805 8166 12249 13610 20415 24498 26249 40830 52498 61245 78747 122490 131245 157494 236241 262490 393735 472482 787470 1181205 2362410 35724889 71449778 107174667 178624445 214349334 321524001 357248890 535873335 643048002 1071746670 1607620005 3215240010