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70646400998 = 2127643432559
BaseRepresentation
bin100000111001011011…
…0101000011111100110
320202100110200000100022
41001302312220133212
52124140434312443
652242101315142
75050453333445
oct1016266503746
9222313600308
1070646400998
1127a63062778
1211837405ab2
13687b33b454
1435c27dad5c
151c87246e68
hex1072da87e6

70646400998 has 16 divisors (see below), whose sum is σ = 106970357760. Its totient is φ = 34990481736.

The previous prime is 70646400967. The next prime is 70646401003. The reversal of 70646400998 is 89900464607.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 52958 + ... + 379601.

It is an arithmetic number, because the mean of its divisors is an integer number (6685647360).

Almost surely, 270646400998 is an apocalyptic number.

70646400998 is a deficient number, since it is larger than the sum of its proper divisors (36323956762).

70646400998 is a wasteful number, since it uses less digits than its factorization.

70646400998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433331.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 70646400998 in words is "seventy billion, six hundred forty-six million, four hundred thousand, nine hundred ninety-eight".

Divisors: 1 2 127 254 643 1286 81661 163322 432559 865118 54934993 109869986 278135437 556270874 35323200499 70646400998