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20076450 = 2352133843
BaseRepresentation
bin100110010010…
…1011110100010
31101202222201020
41030211132202
520114421300
61554150310
7332434632
oct114453642
941688636
1020076450
1110372809
126882396
13420c174
1429486c2
151b688a0
hex13257a2

20076450 has 24 divisors (see below), whose sum is σ = 49789968. Its totient is φ = 5353680.

The previous prime is 20076449. The next prime is 20076479. The reversal of 20076450 is 5467002.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20076450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66772 + ... + 67071.

It is an arithmetic number, because the mean of its divisors is an integer number (2074582).

Almost surely, 220076450 is an apocalyptic number.

20076450 is an abundant number, since it is smaller than the sum of its proper divisors (29713518).

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

20076450 is a wasteful number, since it uses less digits than its factorization.

20076450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133858 (or 133853 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20076450 is about 4480.6751723373. The cubic root of 20076450 is about 271.7871839517.

The spelling of 20076450 in words is "twenty million, seventy-six thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 133843 267686 401529 669215 803058 1338430 2007645 3346075 4015290 6692150 10038225 20076450