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2152970712 = 2333171930859
BaseRepresentation
bin1000000001010011…
…1011100111011000
312120001012020121000
42000110323213120
513402130030322
6553345345000
7104231643354
oct20024734730
95501166530
102152970712
11a05328842
12501038160
13284076489
14165d18464
15c902c3ac
hex8053b9d8

2152970712 has 128 divisors (see below), whose sum is σ = 6665760000. Its totient is φ = 639871488.

The previous prime is 2152970707. The next prime is 2152970719. The reversal of 2152970712 is 2170792512.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152970719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54339 + ... + 85197.

It is an arithmetic number, because the mean of its divisors is an integer number (52076250).

Almost surely, 22152970712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2152970712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3332880000).

2152970712 is an abundant number, since it is smaller than the sum of its proper divisors (4512789288).

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

2152970712 is a wasteful number, since it uses less digits than its factorization.

2152970712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30910 (or 30900 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 2152970712 is about 46400.1154308909. The cubic root of 2152970712 is about 1291.2570548026.

The spelling of 2152970712 in words is "two billion, one hundred fifty-two million, nine hundred seventy thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 17 18 19 24 27 34 36 38 51 54 57 68 72 76 102 108 114 136 152 153 171 204 216 228 306 323 342 408 456 459 513 612 646 684 918 969 1026 1224 1292 1368 1836 1938 2052 2584 2907 3672 3876 4104 5814 7752 8721 11628 17442 23256 30859 34884 61718 69768 92577 123436 185154 246872 277731 370308 524603 555462 586321 740616 833193 1049206 1110924 1172642 1573809 1666386 1758963 2098412 2221848 2345284 3147618 3332772 3517926 4196824 4690568 4721427 5276889 6295236 6665544 7035852 9442854 9967457 10553778 12590472 14071704 14164281 15830667 18885708 19934914 21107556 28328562 29902371 31661334 37771416 39869828 42215112 56657124 59804742 63322668 79739656 89707113 113314248 119609484 126645336 179414226 239218968 269121339 358828452 538242678 717656904 1076485356 2152970712