Search a number
-
+
70075213660 = 225192310917349
BaseRepresentation
bin100000101000011001…
…1101110011101011100
320200212122212200121201
41001100303232131130
52122003223314120
652105255005244
75030346326314
oct1012063563534
9220778780551
1070075213660
112779a6a4221
12116b8069824
1367b9bc028a
14356a9d4444
151c5201b40a
hex1050cee75c

70075213660 has 96 divisors (see below), whose sum is σ = 161808192000. Its totient is φ = 25373525760.

The previous prime is 70075213643. The next prime is 70075213661. The reversal of 70075213660 is 6631257007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70075213661) 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, 9531666 + ... + 9539014.

It is an arithmetic number, because the mean of its divisors is an integer number (1685502000).

Almost surely, 270075213660 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 70075213660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80904096000).

70075213660 is an abundant number, since it is smaller than the sum of its proper divisors (91732978340).

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

70075213660 is a wasteful number, since it uses less digits than its factorization.

70075213660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8491 (or 8489 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The spelling of 70075213660 in words is "seventy billion, seventy-five million, two hundred thirteen thousand, six hundred sixty".

Divisors: 1 2 4 5 10 19 20 23 38 46 76 92 95 115 190 230 380 437 460 874 1091 1748 2182 2185 4364 4370 5455 7349 8740 10910 14698 20729 21820 25093 29396 36745 41458 50186 73490 82916 100372 103645 125465 139631 146980 169027 207290 250930 279262 338054 414580 476767 501860 558524 676108 698155 845135 953534 1396310 1690270 1907068 2383835 2792620 3211513 3380540 4767670 6423026 8017759 9535340 12846052 16035518 16057565 32071036 32115130 40088795 64230260 80177590 152337421 160355180 184408457 304674842 368816914 609349684 737633828 761687105 922042285 1523374210 1844084570 3046748420 3503760683 3688169140 7007521366 14015042732 17518803415 35037606830 70075213660