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61073066970 = 23251374953209
BaseRepresentation
bin111000111000001111…
…010000101111011010
312211122021202020220100
4320320033100233122
52000034201120340
644020115440230
74261306334556
oct707017205732
9184567666810
1061073066970
11239a0177173
12ba052b6076
1359b3b6ab66
142d551c0866
1518c6a68830
hexe383d0bda

61073066970 has 48 divisors (see below), whose sum is σ = 159949057320. Its totient is φ = 16167270912.

The previous prime is 61073066953. The next prime is 61073066987. The reversal of 61073066970 is 7966037016.

It is an interprime number because it is at equal distance from previous prime (61073066953) and next prime (61073066987).

It can be written as a sum of positive squares in 4 ways, for example, as 29914815681 + 31158251289 = 172959^2 + 176517^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2464275 + ... + 2488934.

Almost surely, 261073066970 is an apocalyptic number.

61073066970 is an abundant number, since it is smaller than the sum of its proper divisors (98875990350).

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

61073066970 is a wasteful number, since it uses less digits than its factorization.

61073066970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953359 (or 4953356 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 61073066970 in words is "sixty-one billion, seventy-three million, sixty-six thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 137 274 411 685 822 1233 1370 2055 2466 4110 6165 12330 4953209 9906418 14859627 24766045 29719254 44578881 49532090 74298135 89157762 148596270 222894405 445788810 678589633 1357179266 2035768899 3392948165 4071537798 6107306697 6785896330 10178844495 12214613394 20357688990 30536533485 61073066970