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71380101 = 3134793821
BaseRepresentation
bin1000100000100…
…10110010000101
311222022111002110
410100102302011
5121233130401
611025531233
71524502152
oct420226205
9158274073
1071380101
1137323a21
121baa3b19
1311a32a60
1496a1229
1563ee9d6
hex4412c85

71380101 has 16 divisors (see below), whose sum is σ = 102735360. Its totient is φ = 43823040.

The previous prime is 71380097. The next prime is 71380121. The reversal of 71380101 is 10108317.

It is not a de Polignac number, because 71380101 - 22 = 71380097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71380121) 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, 16771 + ... + 20591.

It is an arithmetic number, because the mean of its divisors is an integer number (6420960).

Almost surely, 271380101 is an apocalyptic number.

It is an amenable number.

71380101 is a deficient number, since it is larger than the sum of its proper divisors (31355259).

71380101 is a wasteful number, since it uses less digits than its factorization.

71380101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 71380101 is about 8448.6745114249. The cubic root of 71380101 is about 414.8193940017.

Adding to 71380101 its reverse (10108317), we get a palindrome (81488418).

The spelling of 71380101 in words is "seventy-one million, three hundred eighty thousand, one hundred one".

Divisors: 1 3 13 39 479 1437 3821 6227 11463 18681 49673 149019 1830259 5490777 23793367 71380101