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55972014 = 2372613121
BaseRepresentation
bin1101010110000…
…1000010101110
310220022200011120
43111201002232
5103312101024
65315401410
71246516500
oct325410256
9126280146
1055972014
112965a66a
12168b3266
13b799747
14760dd70
154da9479
hex35610ae

55972014 has 48 divisors (see below), whose sum is σ = 132397776. Its totient is φ = 15724800.

The previous prime is 55972013. The next prime is 55972039. The reversal of 55972014 is 41027955.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55972013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16374 + ... + 19494.

It is an arithmetic number, because the mean of its divisors is an integer number (2758287).

Almost surely, 255972014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55972014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66198888).

55972014 is an abundant number, since it is smaller than the sum of its proper divisors (76425762).

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

55972014 is a wasteful number, since it uses less digits than its factorization.

55972014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201 (or 3194 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 55972014 is about 7481.4446465907. Note that the first 3 decimals coincide. The cubic root of 55972014 is about 382.5224934442.

Adding to 55972014 its reverse (41027955), we get a palindrome (96999969).

The spelling of 55972014 in words is "fifty-five million, nine hundred seventy-two thousand, fourteen".

Divisors: 1 2 3 6 7 14 21 42 49 61 98 122 147 183 294 366 427 854 1281 2562 2989 3121 5978 6242 8967 9363 17934 18726 21847 43694 65541 131082 152929 190381 305858 380762 458787 571143 917574 1142286 1332667 2665334 3998001 7996002 9328669 18657338 27986007 55972014