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47698989 = 3131223051
BaseRepresentation
bin1011010111110…
…1010000101101
310022202100201020
42311331100231
544202331424
64422204353
71116302052
oct265752055
9108670636
1047698989
1124a19a58
1213b836b9
139b60c70
146499029
1542c3079
hex2d7d42d

47698989 has 8 divisors (see below), whose sum is σ = 68490912. Its totient is φ = 29353200.

The previous prime is 47698979. The next prime is 47698999. The reversal of 47698989 is 98989674.

It is an interprime number because it is at equal distance from previous prime (47698979) and next prime (47698999).

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

It is not a de Polignac number, because 47698989 - 29 = 47698477 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47698919) 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, 611487 + ... + 611564.

It is an arithmetic number, because the mean of its divisors is an integer number (8561364).

Almost surely, 247698989 is an apocalyptic number.

It is an amenable number.

47698989 is a deficient number, since it is larger than the sum of its proper divisors (20791923).

47698989 is a wasteful number, since it uses less digits than its factorization.

47698989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223067.

The product of its digits is 7838208, while the sum is 60.

The square root of 47698989 is about 6906.4454678221. The cubic root of 47698989 is about 362.6628398792.

The spelling of 47698989 in words is "forty-seven million, six hundred ninety-eight thousand, nine hundred eighty-nine".

Divisors: 1 3 13 39 1223051 3669153 15899663 47698989