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214023490 = 25173193641
BaseRepresentation
bin11001100000110…
…11110101000010
3112220201112000221
430300123311002
5414242222430
633123133254
75206112122
oct1460336502
9486645027
10214023490
11aa8a101a
125b81422a
1335457325
14205d2c82
1513bc957a
hexcc1bd42

214023490 has 32 divisors (see below), whose sum is σ = 390084336. Its totient is φ = 84541440.

The previous prime is 214023479. The next prime is 214023493. The reversal of 214023490 is 94320412.

It can be written as a sum of positive squares in 8 ways, for example, as 161620369 + 52403121 = 12713^2 + 7239^2 .

It is not an unprimeable number, because it can be changed into a prime (214023493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333570 + ... + 334210.

Almost surely, 2214023490 is an apocalyptic number.

214023490 is a deficient number, since it is larger than the sum of its proper divisors (176060846).

214023490 is a wasteful number, since it uses less digits than its factorization.

214023490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 214023490 is about 14629.5416879682. The cubic root of 214023490 is about 598.1642874752.

The spelling of 214023490 in words is "two hundred fourteen million, twenty-three thousand, four hundred ninety".

Divisors: 1 2 5 10 173 193 346 386 641 865 965 1282 1730 1930 3205 6410 33389 66778 110893 123713 166945 221786 247426 333890 554465 618565 1108930 1237130 21402349 42804698 107011745 214023490