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38000420 = 2253161291
BaseRepresentation
bin1001000011110…
…1011100100100
32122111121202222
42100331130210
534212003140
63434251512
7640666253
oct220753444
978447688
1038000420
111a4a5307
1210886b98
137b46673
14509279a
1535095b5
hex243d724

38000420 has 24 divisors (see below), whose sum is σ = 82376448. Its totient is φ = 14709600.

The previous prime is 38000401. The next prime is 38000441. The reversal of 38000420 is 2400083.

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, 30026 + ... + 31265.

It is an arithmetic number, because the mean of its divisors is an integer number (3432352).

Almost surely, 238000420 is an apocalyptic number.

It is an amenable number.

38000420 is an abundant number, since it is smaller than the sum of its proper divisors (44376028).

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

38000420 is a wasteful number, since it uses less digits than its factorization.

38000420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61331 (or 61329 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 38000420 is about 6164.4480693733. The cubic root of 38000420 is about 336.1987792979.

The spelling of 38000420 in words is "thirty-eight million, four hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 61291 122582 245164 306455 612910 1225820 1900021 3800042 7600084 9500105 19000210 38000420