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10749988 = 222687497
BaseRepresentation
bin101001000000…
…100000100100
3202020011012201
4221000200210
510222444423
61022224244
7160242034
oct51004044
922204181
1010749988
116082697
123725084
1322c5052
1415db8c4
15e252ad
hexa40824

10749988 has 6 divisors (see below), whose sum is σ = 18812486. Its totient is φ = 5374992.

The previous prime is 10749983. The next prime is 10749989. The reversal of 10749988 is 88994701.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10614564 + 135424 = 3258^2 + 368^2 .

It is not an unprimeable number, because it can be changed into a prime (10749983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343745 + ... + 1343752.

Almost surely, 210749988 is an apocalyptic number.

It is an amenable number.

10749988 is a deficient number, since it is larger than the sum of its proper divisors (8062498).

10749988 is a wasteful number, since it uses less digits than its factorization.

10749988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687501 (or 2687499 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 10749988 is about 3278.7174321676. The cubic root of 10749988 is about 220.7001660011.

The spelling of 10749988 in words is "ten million, seven hundred forty-nine thousand, nine hundred eighty-eight".

Divisors: 1 2 4 2687497 5374994 10749988