Search a number
-
+
448121680642020 = 2235711121151800621
BaseRepresentation
bin110010111100100000111010…
…1100101110011111111100100
32011202200000101102011121020210
41211321001311211303333210
5432214011200221021040
64225024131425455420
7163250502665266650
oct14571016545637744
92152600342147223
10448121680642020
1111a87037923a270
1242314b981a1570
1316307901b53158
147c932c29d1a60
1536c1a17594480
hex1979075973fe4

448121680642020 has 192 divisors, whose sum is σ = 1564366915141632. Its totient is φ = 93115308480000.

The previous prime is 448121680642001. The next prime is 448121680642067. The reversal of 448121680642020 is 20246086121844.

It is a happy number.

It is a super-2 number, since 2×4481216806420202 (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 559317310 + ... + 560117930.

It is an arithmetic number, because the mean of its divisors is an integer number (8147744349696).

Almost surely, 2448121680642020 is an apocalyptic number.

It is an amenable number.

448121680642020 is an abundant number, since it is smaller than the sum of its proper divisors (1116245234499612).

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

448121680642020 is a wasteful number, since it uses less digits than its factorization.

448121680642020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921802 (or 921800 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The spelling of 448121680642020 in words is "four hundred forty-eight trillion, one hundred twenty-one billion, six hundred eighty million, six hundred forty-two thousand, twenty".