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70496020 = 2257503543
BaseRepresentation
bin1000011001110…
…10111100010100
311220122120100201
410030322330110
5121021333040
610554550244
71514130520
oct414727424
9156576321
1070496020
113687a781
121b738384
13117b352a
149510d80
1562c7a9a
hex433af14

70496020 has 24 divisors (see below), whose sum is σ = 169190784. Its totient is φ = 24170016.

The previous prime is 70496017. The next prime is 70496021. The reversal of 70496020 is 2069407.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 70496020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70496021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 251632 + ... + 251911.

It is an arithmetic number, because the mean of its divisors is an integer number (7049616).

Almost surely, 270496020 is an apocalyptic number.

70496020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70496020 is an abundant number, since it is smaller than the sum of its proper divisors (98694764).

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

70496020 is a wasteful number, since it uses less digits than its factorization.

70496020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503559 (or 503557 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 70496020 is about 8396.1908029773. The cubic root of 70496020 is about 413.0996872944.

The spelling of 70496020 in words is "seventy million, four hundred ninety-six thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 503543 1007086 2014172 2517715 3524801 5035430 7049602 10070860 14099204 17624005 35248010 70496020