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71402814 = 23272919541
BaseRepresentation
bin1000100000110…
…00010100111110
311222100122020200
410100120110332
5121234342224
611030224330
71524625320
oct420302476
9158318220
1071402814
1137339a9a
121bab50a6
1311a401b2
1496a9610
1564065c9
hex441853e

71402814 has 48 divisors (see below), whose sum is σ = 182913120. Its totient is φ = 19696320.

The previous prime is 71402791. The next prime is 71402857. The reversal of 71402814 is 41820417.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6117 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (3810690).

Almost surely, 271402814 is an apocalyptic number.

71402814 is an abundant number, since it is smaller than the sum of its proper divisors (111510306).

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

71402814 is a wasteful number, since it uses less digits than its factorization.

71402814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19585 (or 19582 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 71402814 is about 8450.0185798612. The cubic root of 71402814 is about 414.8633875592.

The spelling of 71402814 in words is "seventy-one million, four hundred two thousand, eight hundred fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 29 42 58 63 87 126 174 203 261 406 522 609 1218 1827 3654 19541 39082 58623 117246 136787 175869 273574 351738 410361 566689 820722 1133378 1231083 1700067 2462166 3400134 3966823 5100201 7933646 10200402 11900469 23800938 35701407 71402814