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72988694 = 2311177237
BaseRepresentation
bin1000101100110…
…11100000010110
312002100012122222
410112123200112
5122141114234
611124222342
71544252012
oct426334026
9162305588
1072988694
1138222539
122053a9b2
1312176c9c
14999d542
15661b42e
hex459b816

72988694 has 8 divisors (see below), whose sum is σ = 113014848. Its totient is φ = 35317080.

The previous prime is 72988691. The next prime is 72988763. The reversal of 72988694 is 49688927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72988691) 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, 588557 + ... + 588680.

It is an arithmetic number, because the mean of its divisors is an integer number (14126856).

Almost surely, 272988694 is an apocalyptic number.

72988694 is a deficient number, since it is larger than the sum of its proper divisors (40026154).

72988694 is a wasteful number, since it uses less digits than its factorization.

72988694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177270.

The product of its digits is 1741824, while the sum is 53.

The square root of 72988694 is about 8543.3420860925. The cubic root of 72988694 is about 417.9123424470.

The spelling of 72988694 in words is "seventy-two million, nine hundred eighty-eight thousand, six hundred ninety-four".

Divisors: 1 2 31 62 1177237 2354474 36494347 72988694