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61378703 = 292591237
BaseRepresentation
bin1110101000100…
…1000010001111
311021111100202022
43222021002033
5111203104303
610031320355
71343465441
oct352110217
9137440668
1061378703
1131712801
12186800bb
13c940679
14821a491
1555c6438
hex3a8908f

61378703 has 12 divisors (see below), whose sum is σ = 64697880. Its totient is φ = 58210656.

The previous prime is 61378661. The next prime is 61378711. The reversal of 61378703 is 30787316.

It is not a de Polignac number, because 61378703 - 216 = 61313167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61378753) 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, 49001 + ... + 50237.

It is an arithmetic number, because the mean of its divisors is an integer number (5391490).

Almost surely, 261378703 is an apocalyptic number.

61378703 is a deficient number, since it is larger than the sum of its proper divisors (3319177).

61378703 is a wasteful number, since it uses less digits than its factorization.

61378703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 61378703 is about 7834.4561393884. The cubic root of 61378703 is about 394.4626630538.

The spelling of 61378703 in words is "sixty-one million, three hundred seventy-eight thousand, seven hundred three".

Divisors: 1 29 59 841 1237 1711 35873 49619 72983 1040317 2116507 61378703