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55938029 = 77991147
BaseRepresentation
bin1101010101100…
…0101111101101
310220020221112212
43111120233231
5103310004104
65314540205
71246315430
oct325305755
9126227485
1055938029
1129637084
1216897665
13b787134
147601817
154d9e36e
hex3558bed

55938029 has 4 divisors (see below), whose sum is σ = 63929184. Its totient is φ = 47946876.

The previous prime is 55938019. The next prime is 55938061. The reversal of 55938029 is 92083955.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55938029 - 220 = 54889453 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 (55938019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3995567 + ... + 3995580.

It is an arithmetic number, because the mean of its divisors is an integer number (15982296).

Almost surely, 255938029 is an apocalyptic number.

It is an amenable number.

55938029 is a deficient number, since it is larger than the sum of its proper divisors (7991155).

55938029 is an equidigital number, since it uses as much as digits as its factorization.

55938029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7991154.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 55938029 is about 7479.1730157819. The cubic root of 55938029 is about 382.4450579664.

The spelling of 55938029 in words is "fifty-five million, nine hundred thirty-eight thousand, twenty-nine".

Divisors: 1 7 7991147 55938029