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250142000 = 2453181691
BaseRepresentation
bin11101110100011…
…01110100110000
3122102200112022112
432322031310300
51003014021000
640453224452
76125112653
oct1672156460
9572615275
10250142000
11119220429
126b932128
133ca92224
142531589a
1516e61235
hexee8dd30

250142000 has 80 divisors (see below), whose sum is σ = 609065184. Its totient is φ = 99360000.

The previous prime is 250141981. The next prime is 250142003. The reversal of 250142000 is 241052.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (250142003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361655 + ... + 362345.

Almost surely, 2250142000 is an apocalyptic number.

250142000 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 250142000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304532592).

250142000 is an abundant number, since it is smaller than the sum of its proper divisors (358923184).

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

250142000 is a wasteful number, since it uses less digits than its factorization.

250142000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 250142000 is about 15815.8780976587. The cubic root of 250142000 is about 630.0797748984.

Adding to 250142000 its reverse (241052), we get a palindrome (250383052).

The spelling of 250142000 in words is "two hundred fifty million, one hundred forty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 181 200 250 362 400 500 691 724 905 1000 1382 1448 1810 2000 2764 2896 3455 3620 4525 5528 6910 7240 9050 11056 13820 14480 17275 18100 22625 27640 34550 36200 45250 55280 69100 72400 86375 90500 125071 138200 172750 181000 250142 276400 345500 362000 500284 625355 691000 1000568 1250710 1382000 2001136 2501420 3126775 5002840 6253550 10005680 12507100 15633875 25014200 31267750 50028400 62535500 125071000 250142000