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20055552 = 293111187
BaseRepresentation
bin100110010000…
…0011000000000
31101201221001020
41030200120000
520113234202
61553505440
7332316666
oct114403000
941657036
1020055552
1110359040
126872280
1342027ba
142940c36
151b625bc
hex1320600

20055552 has 80 divisors (see below), whose sum is σ = 58335552. Its totient is φ = 6072320.

The previous prime is 20055547. The next prime is 20055569. The reversal of 20055552 is 25555002.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 16303 + ... + 17489.

Almost surely, 220055552 is an apocalyptic number.

20055552 is a gapful number since it is divisible by the number (22) 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 20055552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29167776).

20055552 is an abundant number, since it is smaller than the sum of its proper divisors (38280000).

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

20055552 is a wasteful number, since it uses less digits than its factorization.

20055552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 20055552 is about 4478.3425505426. The cubic root of 20055552 is about 271.6928482092.

It can be divided in two parts, 2005 and 5552, that added together give a palindrome (7557).

The spelling of 20055552 in words is "twenty million, fifty-five thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1056 1187 1408 1536 2112 2374 2816 3561 4224 4748 5632 7122 8448 9496 13057 14244 16896 18992 26114 28488 37984 39171 52228 56976 75968 78342 104456 113952 151936 156684 208912 227904 303872 313368 417824 455808 607744 626736 835648 911616 1253472 1671296 1823232 2506944 3342592 5013888 6685184 10027776 20055552