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72024244 = 22531811877
BaseRepresentation
bin1000100101100…
…00000010110100
312000112012200121
410102300002310
5121414233434
611051421324
71533124135
oct422600264
9160465617
1072024244
1137723976
1220154844
1311bc9cc6
1497cbc8c
1564ca7b4
hex44b00b4

72024244 has 24 divisors (see below), whose sum is σ = 129198888. Its totient is φ = 35118720.

The previous prime is 72024203. The next prime is 72024289. The reversal of 72024244 is 44242027.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3763600 + 68260644 = 1940^2 + 8262^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37434 + ... + 39310.

It is an arithmetic number, because the mean of its divisors is an integer number (5383287).

Almost surely, 272024244 is an apocalyptic number.

It is an amenable number.

72024244 is a deficient number, since it is larger than the sum of its proper divisors (57174644).

72024244 is a wasteful number, since it uses less digits than its factorization.

72024244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115 (or 2113 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 72024244 is about 8486.7098453995. The cubic root of 72024244 is about 416.0634534002.

It can be divided in two parts, 720 and 24244, that added together give a square (24964 = 1582).

The spelling of 72024244 in words is "seventy-two million, twenty-four thousand, two hundred forty-four".

Divisors: 1 2 4 53 106 181 212 362 724 1877 3754 7508 9593 19186 38372 99481 198962 339737 397924 679474 1358948 18006061 36012122 72024244