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3213478974 = 231223437923
BaseRepresentation
bin1011111110001001…
…1100110000111110
322021221201122102210
42333202130300332
523040122311344
61250512001250
7142430056236
oct27742346076
98257648383
103213478974
1113a9a1a352
12758230226
133c29aaa64
14226ad6cc6
1513c1b1db9
hexbf89cc3e

3213478974 has 16 divisors (see below), whose sum is σ = 6432227712. Its totient is φ = 1070281368.

The previous prime is 3213478903. The next prime is 3213478997. The reversal of 3213478974 is 4798743123.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211624 + ... + 226299.

It is an arithmetic number, because the mean of its divisors is an integer number (402014232).

Almost surely, 23213478974 is an apocalyptic number.

3213478974 is an abundant number, since it is smaller than the sum of its proper divisors (3218748738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213478974 is a wasteful number, since it uses less digits than its factorization.

3213478974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439151.

The product of its digits is 1016064, while the sum is 48.

The square root of 3213478974 is about 56687.5557243387. Note that the first 3 decimals coincide. The cubic root of 3213478974 is about 1475.6787413785.

The spelling of 3213478974 in words is "three billion, two hundred thirteen million, four hundred seventy-eight thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 1223 2446 3669 7338 437923 875846 1313769 2627538 535579829 1071159658 1606739487 3213478974