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55031032 = 237982697
BaseRepresentation
bin1101000111101…
…1010011111000
310211112212101101
43101323103320
5103041443112
65243301144
71235520220
oct321732370
9124485341
1055031032
11290776a1
121651a7b4
13b52a354
147447080
154c70757
hex347b4f8

55031032 has 16 divisors (see below), whose sum is σ = 117923760. Its totient is φ = 23584704.

The previous prime is 55031017. The next prime is 55031047. The reversal of 55031032 is 23013055.

It is an interprime number because it is at equal distance from previous prime (55031017) and next prime (55031047).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491293 + ... + 491404.

It is an arithmetic number, because the mean of its divisors is an integer number (7370235).

Almost surely, 255031032 is an apocalyptic number.

It is an amenable number.

55031032 is an abundant number, since it is smaller than the sum of its proper divisors (62892728).

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

55031032 is a wasteful number, since it uses less digits than its factorization.

55031032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982710 (or 982706 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 55031032 is about 7418.2903690810. The cubic root of 55031032 is about 380.3667557929.

Adding to 55031032 its reverse (23013055), we get a palindrome (78044087).

The spelling of 55031032 in words is "fifty-five million, thirty-one thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 56 982697 1965394 3930788 6878879 7861576 13757758 27515516 55031032