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42621772 = 2243383647
BaseRepresentation
bin1010001010010…
…1101101001100
32222012102002011
42202211231030
541402344042
64121311004
71025164504
oct242455514
988172064
1042621772
1122071406
1212335464
138aa3cab
145936a04
153b1da17
hex28a5b4c

42621772 has 24 divisors (see below), whose sum is σ = 76640256. Its totient is φ = 20728848.

The previous prime is 42621749. The next prime is 42621791. The reversal of 42621772 is 27712624.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65553 + ... + 66199.

It is an arithmetic number, because the mean of its divisors is an integer number (3193344).

Almost surely, 242621772 is an apocalyptic number.

It is an amenable number.

42621772 is a deficient number, since it is larger than the sum of its proper divisors (34018484).

42621772 is a wasteful number, since it uses less digits than its factorization.

42621772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1075 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 42621772 is about 6528.5352109030. The cubic root of 42621772 is about 349.3095831836.

The spelling of 42621772 in words is "forty-two million, six hundred twenty-one thousand, seven hundred seventy-two".

Divisors: 1 2 4 43 86 172 383 647 766 1294 1532 2588 16469 27821 32938 55642 65876 111284 247801 495602 991204 10655443 21310886 42621772