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70878376220 = 22583151282767
BaseRepresentation
bin100001000000010101…
…1100011000100011100
320202221122011120112012
41002000223203010130
52130124331014340
652321105330352
75056301154161
oct1020053430434
9222848146465
1070878376220
1128071aa5133
12118a10369b8
1368b740c7b2
143605544068
151c9c7ba565
hex1080ae311c

70878376220 has 48 divisors (see below), whose sum is σ = 151636036608. Its totient is φ = 27824174400.

The previous prime is 70878376181. The next prime is 70878376237. The reversal of 70878376220 is 2267387807.

It is a super-2 number, since 2×708783762202 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109277 + ... + 392043.

It is an arithmetic number, because the mean of its divisors is an integer number (3159084096).

Almost surely, 270878376220 is an apocalyptic number.

It is an amenable number.

70878376220 is an abundant number, since it is smaller than the sum of its proper divisors (80757660388).

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

70878376220 is a wasteful number, since it uses less digits than its factorization.

70878376220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283010 (or 283008 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 50.

The spelling of 70878376220 in words is "seventy billion, eight hundred seventy-eight million, three hundred seventy-six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 83 151 166 302 332 415 604 755 830 1510 1660 3020 12533 25066 50132 62665 125330 250660 282767 565534 1131068 1413835 2827670 5655340 23469661 42697817 46939322 85395634 93878644 117348305 170791268 213489085 234696610 426978170 469393220 853956340 3543918811 7087837622 14175675244 17719594055 35439188110 70878376220