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90722103 = 3139217559
BaseRepresentation
bin1010110100001…
…00111100110111
320022201011022220
411122010330313
5141211101403
613000253423
72151060633
oct532047467
9208634286
1090722103
114723494a
1226471273
1315a45824
14c097dc3
157e70953
hex5684f37

90722103 has 8 divisors (see below), whose sum is σ = 121833600. Its totient is φ = 60046008.

The previous prime is 90722101. The next prime is 90722119. The reversal of 90722103 is 30122709.

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

It is not a de Polignac number, because 90722103 - 21 = 90722101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90722101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108363 + ... + 109196.

It is an arithmetic number, because the mean of its divisors is an integer number (15229200).

Almost surely, 290722103 is an apocalyptic number.

90722103 is a deficient number, since it is larger than the sum of its proper divisors (31111497).

90722103 is a wasteful number, since it uses less digits than its factorization.

90722103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217701.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 90722103 is about 9524.8151163159. The cubic root of 90722103 is about 449.3358152298.

It can be divided in two parts, 9072 and 2103, that added together give a triangular number (11175 = T149).

The spelling of 90722103 in words is "ninety million, seven hundred twenty-two thousand, one hundred three".

Divisors: 1 3 139 417 217559 652677 30240701 90722103