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70949534 = 21719109829
BaseRepresentation
bin1000011101010…
…01101010011110
311221111121110112
410032221222132
5121130341114
611012410022
71521026645
oct416515236
9157447415
1070949534
113705a487
121b916912
1311911a96
1495cc35c
15636713e
hex43a9a9e

70949534 has 16 divisors (see below), whose sum is σ = 118616400. Its totient is φ = 31630464.

The previous prime is 70949533. The next prime is 70949537. The reversal of 70949534 is 43594907.

It is a junction number, because it is equal to n+sod(n) for n = 70949491 and 70949500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70949533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54269 + ... + 55560.

It is an arithmetic number, because the mean of its divisors is an integer number (7413525).

Almost surely, 270949534 is an apocalyptic number.

70949534 is a deficient number, since it is larger than the sum of its proper divisors (47666866).

70949534 is a wasteful number, since it uses less digits than its factorization.

70949534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109867.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 70949534 is about 8423.1546346960. The cubic root of 70949534 is about 413.9836434684.

The spelling of 70949534 in words is "seventy million, nine hundred forty-nine thousand, five hundred thirty-four".

Divisors: 1 2 17 19 34 38 323 646 109829 219658 1867093 2086751 3734186 4173502 35474767 70949534