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72041076 = 2234222349
BaseRepresentation
bin1000100101101…
…00001001110100
312000120001210000
410102310021310
5121420303301
611052031300
71533224202
oct422641164
9160501700
1072041076
1137735588
1220162530
1311c04873
1497d4072
1564d0786
hex44b4274

72041076 has 30 divisors (see below), whose sum is σ = 188330450. Its totient is φ = 24013584.

The previous prime is 72041063. The next prime is 72041089. The reversal of 72041076 is 67014027.

It is an interprime number because it is at equal distance from previous prime (72041063) and next prime (72041089).

It can be written as a sum of positive squares in only one way, i.e., 61308900 + 10732176 = 7830^2 + 3276^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 110851 + ... + 111498.

Almost surely, 272041076 is an apocalyptic number.

It is an amenable number.

72041076 is an abundant number, since it is smaller than the sum of its proper divisors (116289374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72041076 is a wasteful number, since it uses less digits than its factorization.

72041076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222365 (or 222354 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 72041076 is about 8487.7014556357. The cubic root of 72041076 is about 416.0958620920.

The spelling of 72041076 in words is "seventy-two million, forty-one thousand, seventy-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 222349 444698 667047 889396 1334094 2001141 2668188 4002282 6003423 8004564 12006846 18010269 24013692 36020538 72041076