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55401310 = 2529191039
BaseRepresentation
bin1101001101010…
…1101101011110
310212020200022101
43103111231132
5103140320220
65255235314
71241621566
oct323255536
9125220271
1055401310
11292aa908
1216678b3a
13b629a53
147501da6
154ce530a
hex34d5b5e

55401310 has 16 divisors (see below), whose sum is σ = 103161600. Its totient is φ = 21396256.

The previous prime is 55401299. The next prime is 55401383. The reversal of 55401310 is 1310455.

It is a super-2 number, since 2×554013102 = 6138610299432200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95230 + ... + 95809.

It is an arithmetic number, because the mean of its divisors is an integer number (6447600).

Almost surely, 255401310 is an apocalyptic number.

55401310 is a deficient number, since it is larger than the sum of its proper divisors (47760290).

55401310 is a wasteful number, since it uses less digits than its factorization.

55401310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191075.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 55401310 is about 7443.2056266101. The cubic root of 55401310 is about 381.2179526946.

Adding to 55401310 its reverse (1310455), we get a palindrome (56711765).

The spelling of 55401310 in words is "fifty-five million, four hundred one thousand, three hundred ten".

Divisors: 1 2 5 10 29 58 145 290 191039 382078 955195 1910390 5540131 11080262 27700655 55401310