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54992870 = 255499287
BaseRepresentation
bin1101000111000…
…1111111100110
310211110221000222
43101301333212
5103034232440
65242404342
71235301032
oct321617746
9124427028
1054992870
1129050a59
12165006b2
13b515b7a
1474371c2
154c642b5
hex3471fe6

54992870 has 8 divisors (see below), whose sum is σ = 98987184. Its totient is φ = 21997144.

The previous prime is 54992857. The next prime is 54992879. The reversal of 54992870 is 7829945.

It is a happy number.

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 (54992879) 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, 2749634 + ... + 2749653.

It is an arithmetic number, because the mean of its divisors is an integer number (12373398).

Almost surely, 254992870 is an apocalyptic number.

54992870 is a deficient number, since it is larger than the sum of its proper divisors (43994314).

54992870 is a wasteful number, since it uses less digits than its factorization.

54992870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5499294.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 54992870 is about 7415.7177670135. The cubic root of 54992870 is about 380.2788120017.

The spelling of 54992870 in words is "fifty-four million, nine hundred ninety-two thousand, eight hundred seventy".

Divisors: 1 2 5 10 5499287 10998574 27496435 54992870