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920088445 = 5409449921
BaseRepresentation
bin110110110101110…
…110111101111101
32101010022100001211
4312311312331331
53341020312240
6231144404421
731541423413
oct6665667575
92333270054
10920088445
11432403081
12218176711
1311880b143
148a2a92b3
1555b98bea
hex36d76f7d

920088445 has 8 divisors (see below), whose sum is σ = 1106808120. Its totient is φ = 734269440.

The previous prime is 920088439. The next prime is 920088469. The reversal of 920088445 is 544880029.

It can be written as a sum of positive squares in 4 ways, for example, as 488321604 + 431766841 = 22098^2 + 20779^2 .

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

It is not a de Polignac number, because 920088445 - 25 = 920088413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 920088398 and 920088407.

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, 222916 + ... + 227005.

It is an arithmetic number, because the mean of its divisors is an integer number (138351015).

Almost surely, 2920088445 is an apocalyptic number.

It is an amenable number.

920088445 is a deficient number, since it is larger than the sum of its proper divisors (186719675).

920088445 is a wasteful number, since it uses less digits than its factorization.

920088445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450335.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 920088445 is about 30332.9597138163. The cubic root of 920088445 is about 972.6199921110.

The spelling of 920088445 in words is "nine hundred twenty million, eighty-eight thousand, four hundred forty-five".

Divisors: 1 5 409 2045 449921 2249605 184017689 920088445