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72690002 = 27113171489
BaseRepresentation
bin1000101010100…
…10100101010010
312001210000221022
410111102211102
5122102040002
611113555442
71541566130
oct425224522
9161700838
1072690002
1138039090
1220415b82
13120a1048
149922750
1565acba2
hex4552952

72690002 has 32 divisors (see below), whose sum is σ = 136460160. Its totient is φ = 28212480.

The previous prime is 72689999. The next prime is 72690047. The reversal of 72690002 is 20009627.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48074 + ... + 49562.

It is an arithmetic number, because the mean of its divisors is an integer number (4264380).

Almost surely, 272690002 is an apocalyptic number.

72690002 is a deficient number, since it is larger than the sum of its proper divisors (63770158).

72690002 is a wasteful number, since it uses less digits than its factorization.

72690002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 72690002 is about 8525.8431841080. The cubic root of 72690002 is about 417.3414881062.

Adding to 72690002 its reverse (20009627), we get a palindrome (92699629).

The spelling of 72690002 in words is "seventy-two million, six hundred ninety thousand, two".

Divisors: 1 2 7 11 14 22 77 154 317 634 1489 2219 2978 3487 4438 6974 10423 16379 20846 24409 32758 48818 114653 229306 472013 944026 3304091 5192143 6608182 10384286 36345001 72690002