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91369442 = 2192404459
BaseRepresentation
bin1010111001000…
…10111111100010
320100221001022102
411130202333202
5141342310232
613022210402
72156425133
oct534427742
9210831272
1091369442
114763723a
1226723a02
1315c11378
14c1c5c8a
15804c662
hex5722fe2

91369442 has 8 divisors (see below), whose sum is σ = 144267600. Its totient is φ = 43280244.

The previous prime is 91369433. The next prime is 91369463. The reversal of 91369442 is 24496319.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 2404459 = 91369442 / (9 + 1 + 3 + 6 + 9 + 4 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 91369396 and 91369405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202192 + ... + 1202267.

It is an arithmetic number, because the mean of its divisors is an integer number (18033450).

Almost surely, 291369442 is an apocalyptic number.

91369442 is a deficient number, since it is larger than the sum of its proper divisors (52898158).

91369442 is a wasteful number, since it uses less digits than its factorization.

91369442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404480.

The product of its digits is 46656, while the sum is 38.

The square root of 91369442 is about 9558.7364227705. The cubic root of 91369442 is about 450.4020144099.

The spelling of 91369442 in words is "ninety-one million, three hundred sixty-nine thousand, four hundred forty-two".

Divisors: 1 2 19 38 2404459 4808918 45684721 91369442