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72000010 = 2583223389
BaseRepresentation
bin1000100101010…
…10001000001010
312000110222110001
410102222020022
5121413000020
611051113214
71532663365
oct422521012
9160428401
1072000010
1137707745
122014280a
1311bbbc74
1497c30dc
1564c350a
hex44aa20a

72000010 has 32 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 28252608.

The previous prime is 72000007. The next prime is 72000053. The reversal of 72000010 is 1000027.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184896 + ... + 185284.

It is an arithmetic number, because the mean of its divisors is an integer number (4127760).

Almost surely, 272000010 is an apocalyptic number.

72000010 is a deficient number, since it is larger than the sum of its proper divisors (60088310).

72000010 is a wasteful number, since it uses less digits than its factorization.

72000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702.

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 72000010 is about 8485.2819634942. The cubic root of 72000010 is about 416.0167838704.

Adding to 72000010 its reverse (1000027), we get a palindrome (73000037).

The spelling of 72000010 in words is "seventy-two million, ten", and thus it is an aban number and an uban number.

Divisors: 1 2 5 10 83 166 223 389 415 446 778 830 1115 1945 2230 3890 18509 32287 37018 64574 86747 92545 161435 173494 185090 322870 433735 867470 7200001 14400002 36000005 72000010