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70974447906 = 23671011748053
BaseRepresentation
bin100001000011001101…
…0000010000100100010
320210012022221112002210
41002012122002010202
52130323424313111
652334420422550
75061545565435
oct1020632020442
9223168845083
1070974447906
112811125321a
1211909247a56
1369012a924b
1436141d181c
151ca5e460a6
hex1086682122

70974447906 has 32 divisors (see below), whose sum is σ = 145494030528. Its totient is φ = 23074286400.

The previous prime is 70974447871. The next prime is 70974447911. The reversal of 70974447906 is 60974447907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833425 + ... + 914628.

It is an arithmetic number, because the mean of its divisors is an integer number (4546688454).

Almost surely, 270974447906 is an apocalyptic number.

70974447906 is an abundant number, since it is smaller than the sum of its proper divisors (74519582622).

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

70974447906 is a wasteful number, since it uses less digits than its factorization.

70974447906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748226.

The product of its (nonzero) digits is 10668672, while the sum is 57.

Subtracting from 70974447906 its reverse (60974447907), we obtain a palindrome (9999999999).

The spelling of 70974447906 in words is "seventy billion, nine hundred seventy-four million, four hundred forty-seven thousand, nine hundred six".

Divisors: 1 2 3 6 67 101 134 201 202 303 402 606 6767 13534 20301 40602 1748053 3496106 5244159 10488318 117119551 176553353 234239102 351358653 353106706 529660059 702717306 1059320118 11829074651 23658149302 35487223953 70974447906