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101040420220 = 225127277143609
BaseRepresentation
bin101111000011001111…
…0100111010101111100
3100122210200101011110221
41132012132213111330
53123412321421340
6114230050511124
710204606254415
oct1360636472574
9318720334427
10101040420220
113993a757223
12176ba2954a4
1396b322c7cc
144c672d080c
15296575244a
hex17867a757c

101040420220 has 48 divisors (see below), whose sum is σ = 214629166080. Its totient is φ = 39952894464.

The previous prime is 101040420197. The next prime is 101040420233. The reversal of 101040420220 is 22024040101.

It is a junction number, because it is equal to n+sod(n) for n = 101040420194 and 101040420203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631776 + ... + 775384.

It is an arithmetic number, because the mean of its divisors is an integer number (4471440960).

Almost surely, 2101040420220 is an apocalyptic number.

101040420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101040420220 is an abundant number, since it is smaller than the sum of its proper divisors (113588745860).

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

101040420220 is a wasteful number, since it uses less digits than its factorization.

101040420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144022 (or 144020 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 101040420220 its reverse (22024040101), we get a palindrome (123064460321).

The spelling of 101040420220 in words is "one hundred one billion, forty million, four hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 127 254 277 508 554 635 1108 1270 1385 2540 2770 5540 35179 70358 140716 143609 175895 287218 351790 574436 703580 718045 1436090 2872180 18238343 36476686 39779693 72953372 79559386 91191715 159118772 182383430 198898465 364766860 397796930 795593860 5052021011 10104042022 20208084044 25260105055 50520210110 101040420220