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61210208 = 257326203
BaseRepresentation
bin1110100101111…
…1111001100000
311021011210121202
43221133321200
5111132211313
610023540332
71342164263
oct351377140
9137153552
1061210208
1131608154
12185ba6a8
13c8b1a77
1481b4cda
155591558
hex3a5fe60

61210208 has 24 divisors (see below), whose sum is σ = 122163048. Its totient is φ = 30184704.

The previous prime is 61210207. The next prime is 61210231. The reversal of 61210208 is 80201216.

It is a self number, because there is not a number n which added to its sum of digits gives 61210208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61210207) 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, 10766 + ... + 15437.

It is an arithmetic number, because the mean of its divisors is an integer number (5090127).

Almost surely, 261210208 is an apocalyptic number.

It is an amenable number.

61210208 is a deficient number, since it is larger than the sum of its proper divisors (60952840).

61210208 is a wasteful number, since it uses less digits than its factorization.

61210208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26286 (or 26278 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 61210208 is about 7823.6952905900. The cubic root of 61210208 is about 394.1013765091.

The spelling of 61210208 in words is "sixty-one million, two hundred ten thousand, two hundred eight".

Divisors: 1 2 4 8 16 32 73 146 292 584 1168 2336 26203 52406 104812 209624 419248 838496 1912819 3825638 7651276 15302552 30605104 61210208