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38822028 = 22373712491
BaseRepresentation
bin1001010000011…
…0000010001100
32201001100210220
42110012002030
534414301103
63504031340
7650660520
oct224060214
981040726
1038822028
111aa06623
1211002550
13807361b
145227d80
15361cc53
hex250608c

38822028 has 48 divisors (see below), whose sum is σ = 106331904. Its totient is φ = 10791360.

The previous prime is 38822027. The next prime is 38822041. The reversal of 38822028 is 82022883.

It is a self number, because there is not a number n which added to its sum of digits gives 38822028.

It is not an unprimeable number, because it can be changed into a prime (38822027) 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, 3138 + ... + 9353.

It is an arithmetic number, because the mean of its divisors is an integer number (2215248).

Almost surely, 238822028 is an apocalyptic number.

It is an amenable number.

38822028 is an abundant number, since it is smaller than the sum of its proper divisors (67509876).

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

38822028 is a wasteful number, since it uses less digits than its factorization.

38822028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542 (or 12540 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 38822028 is about 6230.7325412025. The cubic root of 38822028 is about 338.6045108995.

The spelling of 38822028 in words is "thirty-eight million, eight hundred twenty-two thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 111 148 222 259 444 518 777 1036 1554 3108 12491 24982 37473 49964 74946 87437 149892 174874 262311 349748 462167 524622 924334 1049244 1386501 1848668 2773002 3235169 5546004 6470338 9705507 12940676 19411014 38822028