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70446471 = 3199371319
BaseRepresentation
bin1000011001011…
…10110110000111
311220120001101120
410030232312013
5121013241341
610553525023
71513533204
oct414566607
9156501346
1070446471
1136846527
121b713773
1311796b04
1494dacab
1562b8066
hex432ed87

70446471 has 16 divisors (see below), whose sum is σ = 99052800. Its totient is φ = 44411328.

The previous prime is 70446443. The next prime is 70446473. The reversal of 70446471 is 17464407.

It is not a de Polignac number, because 70446471 - 26 = 70446407 is a prime.

It is a super-3 number, since 3×704464713 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70446473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52750 + ... + 54068.

It is an arithmetic number, because the mean of its divisors is an integer number (6190800).

Almost surely, 270446471 is an apocalyptic number.

70446471 is a deficient number, since it is larger than the sum of its proper divisors (28606329).

70446471 is a wasteful number, since it uses less digits than its factorization.

70446471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 70446471 is about 8393.2396010122. The cubic root of 70446471 is about 413.0028805346.

The spelling of 70446471 in words is "seventy million, four hundred forty-six thousand, four hundred seventy-one".

Divisors: 1 3 19 57 937 1319 2811 3957 17803 25061 53409 75183 1235903 3707709 23482157 70446471