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70401471 = 3717197203
BaseRepresentation
bin1000011001000…
…11110110111111
311220110202122220
410030203312333
5121010321341
610552540423
71513255050
oct414436677
9156422586
1070401471
1136815738
121b6b1713
131177c49a
1494c8727
1562a9a66
hex4323dbf

70401471 has 16 divisors (see below), whose sum is σ = 113589504. Its totient is φ = 37862784.

The previous prime is 70401439. The next prime is 70401481. The reversal of 70401471 is 17410407.

It is not a de Polignac number, because 70401471 - 25 = 70401439 is a prime.

It is a super-3 number, since 3×704014713 (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 (70401421) 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, 98245 + ... + 98958.

It is an arithmetic number, because the mean of its divisors is an integer number (7099344).

Almost surely, 270401471 is an apocalyptic number.

70401471 is a deficient number, since it is larger than the sum of its proper divisors (43188033).

70401471 is a wasteful number, since it uses less digits than its factorization.

70401471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197230.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 70401471 is about 8390.5584438701. The cubic root of 70401471 is about 412.9149220793.

Adding to 70401471 its reverse (17410407), we get a palindrome (87811878).

The spelling of 70401471 in words is "seventy million, four hundred one thousand, four hundred seventy-one".

Divisors: 1 3 7 17 21 51 119 357 197203 591609 1380421 3352451 4141263 10057353 23467157 70401471