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71514949 = 1128322973
BaseRepresentation
bin1000100001100…
…11101101000101
311222120100001211
410100303231011
5121301434244
611032451421
71525603252
oct420635505
9158510054
1071514949
1137406270
121bb49b71
1311a7c24c
1496d8429
156429934
hex4433b45

71514949 has 8 divisors (see below), whose sum is σ = 78295392. Its totient is φ = 64781040.

The previous prime is 71514943. The next prime is 71514953. The reversal of 71514949 is 94941517.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71514949 - 211 = 71512901 is a prime.

It is a super-2 number, since 2×715149492 = 10228775860945202, which contains 22 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 (71514943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8374 + ... + 14599.

It is an arithmetic number, because the mean of its divisors is an integer number (9786924).

Almost surely, 271514949 is an apocalyptic number.

It is an amenable number.

71514949 is a deficient number, since it is larger than the sum of its proper divisors (6780443).

71514949 is a wasteful number, since it uses less digits than its factorization.

71514949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23267.

The product of its digits is 45360, while the sum is 40.

The square root of 71514949 is about 8456.6511693459. The cubic root of 71514949 is about 415.0804489124.

It can be divided in two parts, 7151 and 4949, that added together give a square (12100 = 1102).

The spelling of 71514949 in words is "seventy-one million, five hundred fourteen thousand, nine hundred forty-nine".

Divisors: 1 11 283 3113 22973 252703 6501359 71514949