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52254940 = 22517198089
BaseRepresentation
bin1100011101010…
…1100011011100
310122022211022011
43013111203130
5101334124230
65104001004
71203105523
oct307254334
9118284264
1052254940
1127550a01
1215600164
13aa978aa
146d234ba
1548c2e2a
hex31d58dc

52254940 has 48 divisors (see below), whose sum is σ = 122320800. Its totient is φ = 18634752.

The previous prime is 52254931. The next prime is 52254947. The reversal of 52254940 is 4945225.

52254940 = T1001 + T1002 + ... + T1095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52254947) 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, 2416 + ... + 10504.

It is an arithmetic number, because the mean of its divisors is an integer number (2548350).

Almost surely, 252254940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52254940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61160400).

52254940 is an abundant number, since it is smaller than the sum of its proper divisors (70065860).

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

52254940 is a wasteful number, since it uses less digits than its factorization.

52254940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8134 (or 8132 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 52254940 is about 7228.7578462693. The cubic root of 52254940 is about 373.8601000003.

The spelling of 52254940 in words is "fifty-two million, two hundred fifty-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 170 190 323 340 380 646 1292 1615 3230 6460 8089 16178 32356 40445 80890 137513 153691 161780 275026 307382 550052 614764 687565 768455 1375130 1536910 2612747 2750260 3073820 5225494 10450988 13063735 26127470 52254940