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47970398 = 2716692053
BaseRepresentation
bin1011011011111…
…1100001011110
310100021011000102
42312333201132
544240023043
64432101102
71121512250
oct266774136
9110234012
1047970398
1125094963
1214094792
139c27668
146529cd0
1543286b8
hex2dbf85e

47970398 has 16 divisors (see below), whose sum is σ = 82324320. Its totient is φ = 20536416.

The previous prime is 47970371. The next prime is 47970443. The reversal of 47970398 is 89307974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22340 + ... + 24392.

It is an arithmetic number, because the mean of its divisors is an integer number (5145270).

Almost surely, 247970398 is an apocalyptic number.

47970398 is a deficient number, since it is larger than the sum of its proper divisors (34353922).

47970398 is a wasteful number, since it uses less digits than its factorization.

47970398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 47970398 is about 6926.0665604656. The cubic root of 47970398 is about 363.3493943091.

The spelling of 47970398 in words is "forty-seven million, nine hundred seventy thousand, three hundred ninety-eight".

Divisors: 1 2 7 14 1669 2053 3338 4106 11683 14371 23366 28742 3426457 6852914 23985199 47970398