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55301930 = 258962137
BaseRepresentation
bin1101001011110…
…1011100101010
310212001121222122
43102331130222
5103124130210
65253151242
71241026055
oct322753452
9125047878
1055301930
1129242182
121662b522
13b5c3748
1474b7a9c
154cc5b55
hex34bd72a

55301930 has 16 divisors (see below), whose sum is σ = 100663560. Its totient is φ = 21871872.

The previous prime is 55301899. The next prime is 55301933. The reversal of 55301930 is 3910355.

It can be written as a sum of positive squares in 4 ways, for example, as 45144961 + 10156969 = 6719^2 + 3187^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55301930.

It is not an unprimeable number, because it can be changed into a prime (55301933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30179 + ... + 31958.

Almost surely, 255301930 is an apocalyptic number.

55301930 is a deficient number, since it is larger than the sum of its proper divisors (45361630).

55301930 is a wasteful number, since it uses less digits than its factorization.

55301930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62233.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 55301930 is about 7436.5267430434. The cubic root of 55301930 is about 380.9898707475.

The spelling of 55301930 in words is "fifty-five million, three hundred one thousand, nine hundred thirty".

Divisors: 1 2 5 10 89 178 445 890 62137 124274 310685 621370 5530193 11060386 27650965 55301930