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214172400 = 243521313729
BaseRepresentation
bin11001100010000…
…00001011110000
3112221000002022010
430301000023300
5414312004100
633130242520
75210302221
oct1461001360
9487002263
10214172400
11aa992992
125b886440
13354aa040
1420631248
1513c08750
hexcc402f0

214172400 has 120 divisors (see below), whose sum is σ = 738893680. Its totient is φ = 52715520.

The previous prime is 214172353. The next prime is 214172447. The reversal of 214172400 is 4271412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (214172353) and next prime (214172447).

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×2141724003 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8736 + ... + 22464.

Almost surely, 2214172400 is an apocalyptic number.

214172400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214172400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369446840).

214172400 is an abundant number, since it is smaller than the sum of its proper divisors (524721280).

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

214172400 is a wasteful number, since it uses less digits than its factorization.

214172400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13763 (or 13752 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 214172400 is about 14634.6301627339. The cubic root of 214172400 is about 598.3029825224.

The spelling of 214172400 in words is "two hundred fourteen million, one hundred seventy-two thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 25 26 30 39 40 48 50 52 60 65 75 78 80 100 104 120 130 150 156 195 200 208 240 260 300 312 325 390 400 520 600 624 650 780 975 1040 1200 1300 1560 1950 2600 3120 3900 5200 7800 13729 15600 27458 41187 54916 68645 82374 109832 137290 164748 178477 205935 219664 274580 329496 343225 356954 411870 535431 549160 658992 686450 713908 823740 892385 1029675 1070862 1098320 1372900 1427816 1647480 1784770 2059350 2141724 2677155 2745800 2855632 3294960 3569540 4118700 4283448 4461925 5354310 5491600 7139080 8237400 8566896 8923850 10708620 13385775 14278160 16474800 17847700 21417240 26771550 35695400 42834480 53543100 71390800 107086200 214172400