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1340761471 = 72231189673
BaseRepresentation
bin100111111101010…
…0110010101111111
310110102212201222021
41033322212111333
510221213331341
6341013101011
745140166400
oct11772462577
93412781867
101340761471
11628908a35
12315027767
13184a0a2aa
14ca0d19a7
157ca929d1
hex4fea657f

1340761471 has 12 divisors (see below), whose sum is σ = 1627474032. Its totient is φ = 1099256928.

The previous prime is 1340761469. The next prime is 1340761493. The reversal of 1340761471 is 1741670431.

It is not a de Polignac number, because 1340761471 - 21 = 1340761469 is a prime.

It is a super-3 number, since 3×13407614713 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340761271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593710 + ... + 595963.

It is an arithmetic number, because the mean of its divisors is an integer number (135622836).

Almost surely, 21340761471 is an apocalyptic number.

1340761471 is a deficient number, since it is larger than the sum of its proper divisors (286712561).

1340761471 is a wasteful number, since it uses less digits than its factorization.

1340761471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189710 (or 1189703 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1340761471 is about 36616.4098595152. The cubic root of 1340761471 is about 1102.6825632001.

The spelling of 1340761471 in words is "one billion, three hundred forty million, seven hundred sixty-one thousand, four hundred seventy-one".

Divisors: 1 7 23 49 161 1127 1189673 8327711 27362479 58293977 191537353 1340761471